Catalyst Monitor Drive Cycle

Catalyst Monitor Won't Reset | GM Truck Club Forum. Start the motor and keep the car idle for 20 seconds. Are you sure you followed the drive cycle precisely and started with a cold car that sat overnight? If so, there may be a fault that’s preventing the readiness setting, in which case the fault (perhaps an O2 sensor?) will need to be corrected, then the car driven to set the monitors. The purpose of the OBDII drive cycle is to run your vehicle's onboard diagnostics. It is necessary. IAT (Intake Air Temperature) must be 14E F (-10E C) or more. To complete a specific monitor for repair verification,. A Monitor must be listed as Ready to pass an emis-sions test. One place I saw said, "If the Oxygen Sensor Heater Monitor is not ready, check to see how many other Monitors are not ready. This are the monitoring: Catalyst Efficiency Monitor - This strategy monitors the two heated oxygen sensors. A successful flywheel adaptation can be verified with a Volvo System Tester, but I just assumed that 8 runs would be enough if everything is working normally. Changed the spark plugs and two coil packs. This drive cycle relearns the OBDII system and rechecks all of the emissions component’s individual systems. This, in turn, allows monitors to operate and detect potential malfunctions of your vehicle's emission system. The xDrive30d diesel returns a combined fuel consumption of 47. If you don't have access to drive cycles/drive traces, they should be available from a qualified service technician or dealership. During this time, in addition to the diagnostics performed in step 4, the catalyst monitor diagnostics will be performed. , a drive cycle. Next idle for another 2 1/2 minutes with the A/C compressor and rear defroster on and while the transmission is in Drive (D); only of automatic transmission. 5 (idle switch is ON) Engine coolant temperature greater than 170 degrees F. 1998 Chevrolet Pickup C1500 DRIVE CYCLES OBD-II Vehicles - OBD-II Readiness Monitors Home. I've been to the tester 4 time,it wont make it thru emissions cause the CATALYST monitor wont get ready. It has a K&N cold air system and box, and Flowmaster after axle mufflers. Catalyst Monitor (CAT):. Note: Original 1996 Chrysler vehicles do not maintain OBD2 readiness after engine shutdown, however this is a fix that is available at a dealer. These Monitors are part of the OBDII protocol so that the car can be warmed up, and driven to see all of the smog stuff is working. ️ ️Tired old car with high miles and your catalyst (CAT) monitor is not ready (INC)? I'm going to show you a little trick. Third, complete the so called "drive cycle". 15 minutes, drive to the nearest interstate highway. Drive Cycle Recommendations:. Do not use brake clutch, or shift gears. During this time, in addition to the diagnostics performed in step 4, the catalyst monitor diagnostics will be performed. Compare Catalyst vs Outreach vs SalesboxAI Log in Sign up. I have the GM drive cycle and have used it several times, but I can not get the catalyst monitor to complete. Here in Utah we can have one not ready and pass so i just need one to change. 0 Cell Temp Hum idif er Temps Shut-down Ai rpu ge Voltage Start Current up Operation with DOE Drive Cycle Protocol • Constant Stoich - Fows lead current (4 sec. It is a friends truck and he has driven through the Toyota TSB drive cycle and the generic GM drive cycle countless times and commuted for over 1000 miles and 5 months with no code or complete monitor. Drive at a steady speed between 40 and 70 MPH for 10 minutes. Bingo! Set last two remaining monitors: Catalyst and Evap> Apparently, thermostat is staying open and thus coolant not reaching 176 degrees which is the precondition set by programmers for the monitors to even start. The Evap "bypassing" procedure is described in the following drive cycle. we attempted a drive cycle but is still has not run. If the catalyst is marginal or the battery has been disconnected, it may take 5 complete driving cycles to determine the state of the catalyst. by Ballard Power Systems and simulated drive cycle data to monitor total amount of CO 2 evolved. Must complete EGR 4. Toyota cat was installed over 3,500 miles ago and monitor will still not run. ) Step Three is the most important part of the Range Rover Drive Cycle, the road test. Note: Original 1996 Chrysler vehicles do not maintain OBD2 readiness after engine shutdown, however this is a fix that is available at a dealer. Turn off all accessories in the vehicle. Repeat steps two and three 5 times. Pontiac uses the GM (General Motors) drive cycle. The smog test guys wanted me to go out & drive 50-60 miles, & said that would clear it, but what I'm reading about evap monitors agrees with your multi-day scenario. For rear o2 to complete on same drive cycle, may take more than one drive cycle. Then, they characterized the spectroscopic vibrations of the carbonyl for different forms of the catalyst before and after it receives an electron. As a result, the petrol xDrive40i delivers 33. I remember a few years ago it took a long time before the readiness monitor was reset after fixing an O2 sensor, but this is just ridiculous. Mitsubishi has provided driving cycles in its service information to allow monitors to operate. The drive cycle is explained in more details in the next paragraph. If the catalyst is marginal or the battery has been disconnected, it may take several complete driving cycles to determine the state of the catalyst. 4) Drive (with steady throttle) at a speed above 20 mph for 2 minutes. Diesel Oxidation Catalyst DPF Regeneration Assistance Monitor Diesel Oxidation Catalyst SCR Assistance Monitor Same as OBD-II but does not set the MIL. Do not use brake clutch, or shift gears. Contents: 2. 6) Drive at speeds between 25 and 45 mph for 15 minutes. Decelerate without using the brake (coast down) to 20 MPH or less, then stop the vehicle. Hold Steady Speed. I've been to the tester 4 time,it wont make it thru emissions cause the CATALYST monitor wont get ready. Finally got EVAP to complete!!!!! I had a friend with me to help time the intervals. Following the specific drive cycle to the letter, will help it set as "Ready" more quickly. Drive cycles will get most things ready eventually (Unless your ecu or other modifications were done to wiring) but sometimes I see cars with 1000 + miles and all types of drive cycles not get ready, replace a cat or a vent hose over fuel tank (for example) and it smogs fine. The correct drive cycle for your vehicle can vary greatly, depending on the vehicle model and the monitors that need to be reset. 1a, 1b, 3a and 3b show the available Catalyst Monitor data. Catalyst Monitor Won't Reset | GM Truck Club Forum. met, the monitor is triggered to report a “ready” condition for the system it is monitoring. 15 minutes to warm up and run the evaporative emissions test. The OBD II catalyst monitor only runs under certain operating conditions, which typically require a combination of city and highway driving on the same drive cycle. I looked up what it takes to reset readiness monitors for the catalyst system and it doesn't take much. CATALYST (NON-A/F SENSOR) MONITOR DRIVE CYCLE. This ends the drive cycle. Inventory Unit Detail Pete's Cycle - Baltimore Baltimore, MD (410) 663-8556. The Drive Cycle and Emissions Readiness Monitors are methods used by the powertrain control module (PCM) to determine whether an emissions system repair was properly performed. OR The Scan Tool display is continuously updated. Universal X431 Pro Scan Tool by Launch Tech®. To use the ROM monitor, you must be using a terminal or PC that is connected to the switch over the console port. Accelerate to 40-55 MPH at 25% throttle and maintain speed for five minutes. During this time, in addition to the diagnostics performed in step 4, the catalyst monitor diagnostics will be performed. Detailed analytics of each bundle provide dynamic data exploration, real-time filtering, and drill-down to patient-level detail. Drive Cycle Procedure (Readiness Monitors) is free Auto & Vehicles app, developed by OBD High Tech. Hold a steady speed of 55mph (88km/hr) for five minutes. I have a plug in tuner, and had to tow a car and a big heavy trailer, so I "returned to stock" for the tow. Typically if you drive for 60-100 miles you will cover all your bases, so to speak, and the monitors. Oxygen sensors appear to be switching as needed. 3) Rev engine in neutral or park to 3,800-4,200 rpm for 15 seconds. The Drive Cycle and Emissions Readiness Monitors are methods used by the powertrain control module (PCM) to determine whether an emissions system repair was properly performed. This procedure ensures your computer's monitors are able to run their diagnostics. They are EVAP, Catalyst, and others. Establish and monitor line side inventory levels and. 3) Stop and idle for. It is necessary. A trip is the one that considers all the enable criteria for a monitor test to be taken. This, in turn, allows monitors to operate and detect potential malfunctions of your vehicle's emission system. Hold Steady Speed. Drive the cycle in the link I posted - note that it says you may have to drive it 5 times. Drive Cycle Procedure Drive Cycle Preparation 1. Drive Cycle O2 sensor monitor will not run. 1996 dodge stratus 2. Drive Cycle Recommendations: Most OBDII monitors will complete more readily using a "steady foot. Just I/M monitor says Catalyst Mon - Incomplete. I have been having issues with a P0446 code and not sure if it is fixed. "GENERIC DRIVE CYCLE The purpose of the OBDII drive cycle is to run your vehicle's onboard diagnostics. Until you do the specific drive cycle the ECM is looking for it will not run/pass the monitor. Step Three: Take Note of Which Drive Cycle Monitor(s) Did Not Complete. Possibly even multiple trips or multiple warm up cool down cycles. It should get the catalyst monitor, as well as the EGR, EVAP and AIR monitors, ready for the smog inspection. Are you sure you followed the drive cycle precisely and started with a cold car that sat overnight? If so, there may be a fault that’s preventing the readiness setting, in which case the fault (perhaps an O2 sensor?) will need to be corrected, then the car driven to set the monitors. If the catalyst is marginal or the battery has been disconnected, it may take 5 complete driving cycles to determine the state of the catalyst. Had the same problem with Tacoma. 2mpg on the combined cycle and CO2 emissions are 193g/km. Refer to pages 1-3 on the link for detail info on how to conduct drive cycle. During this time, in addition to the diagnostics performed in step 4, the catalyst monitor diagnostics will be performed. Catalyst Monitor Drive Trace. The OBDII drive cycle begins with a cold start (coolant temperature below 122 degrees F and the coolant and air temperature sensors within 11 degrees of one another). The purpose of the OBD2 drive cycle is to let your car run on-board diagnostics. Mechanic said, let engine cool off for 8 hours, idle for 2 mintues and drive around 50mph for 20 minutes, did that still no good. Descargar MP3 Catalyst Not Ready For Emission Test Cat Monitor Inc Get Catalyst Moni Gratis Acabas de hallar Catalyst Not Ready For Emission Test Cat Monitor Inc Get Catalyst Moni. I've been driving the car around normally for another couple of days and the catalyst now shows ready, but not the evap monitor. Basic stuff like vapor recovery operation, pre and post cat sensors, knock, temp, load calc, transition from open to closed loop, misfire, etc. Catalyst Monitor - The vehicle must be driven at highway speeds for the time listed in the pre-test screen. Pre-Conditioning Requirements: ECT (Engine Coolant Temperature) must be 176E F (80E C) or more. Catalyst Monitor Drive Cycles. Chrysler Drive Cycle Information. This drive cycle relearns the OBDII system and rechecks all of the emissions component’s individual systems. Depending on the Drive Cycle Monitors one of these 2 screens. I'm highly skeptical that you have to drive a full 20 minutes at 50-60 mph as all the other drive cycle methods only say 3-5 minutes, but I gave it a good 15 minutes or so before I started it and got a 60 second and 30 second interval in of driving without touching brake or gas. I've been driving the car around normally for another couple of days and the catalyst now shows ready, but not the evap monitor. Attached image is what they look like. IAT (Intake Air Temperature) must be 14E F (-10E C) or more. All Monitor Drive Trace Pre-Conditioning Requirements: - MIL must be off - Cold start (Note: cold start temperature is undefined) Driving Procedure 1) Warm engine up for five minutes (must reach closed loop) 2) Drive (with steady throttle) at a speed between 40 and 60 mph for 8 minutes. Coolant needs to be within 0 to 40C (0 to 104F) at start 2. 3: Catalyst Monitor (O2S Type) 40 – 50 mph (64 – 88 km/h) 35 – 45 mph (56 – 72 km/h) Idling IG SW off Warm up ECT≥176 F IAT < 50 F = 7 min IAT > 50 F = 3 min (a) 7 min (b) Preconditions The monitor will not run unless: MIL is OFF. 5) Turn key off, leave off for ten minutes (to run O2 sensor heater monitor). Many translated example sentences containing "catalyst monitor" – Spanish-English dictionary and search engine for Spanish translations. Drive Cycle (1 of 2) •A monitor is complete after it has been checked for function and cleared by the PCM. So you still might just be able to drive the readiness monitors to completion but you probably will have to change your 'drive cycle'. The PCM monitors for this condition for 3 cycles of 12 seconds each during the drive cycle. •All Onboard Diagnostic Monitors are cleared when the battery is disconnected or when the Powertrain Control Module (PCM) is cleared with the Scan Tool. These tend to show that the HO2S sensors may be failing, and may often be associated with the Lack of Switch DTCs P0131/0132 and P0151/0152. I have found best practice is to drive the speed limit and NOT FASTER THAN 50mph or 80km. Clear all DTC's/ Perform a PCM Reset. Posted: Tue Jul 28, 2020 8:01 am Post subject: Re: OBD2 Drive Cycle Roku is a streaming device, which is a reasonable roku activation and other Set-up Box. Drive the cycle in the link I posted - note that it says you may have to drive it 5 times. A Monitor must be listed as. DIAGNOSTIC MONITORS DRIVE CYCLES Technicians can ensure that an OBD Monitor drive cycle is completed and that all or specific components have been checked by completing a specified drive cycle. READINESS MONITOR DRIVE PATTERNS – EG002-02 February 8, 2002 Page 6 of 15 DRIVE PATTERN NO. I got the car used, so I am not 100% sure what had been done to it, but I know bolt-on mods are on it. Operation with DOE Drive Cycle Protocol - Start-Stop 0 20 40 60 80 100 01234 Time / hr 0. For example, here you can find out everything about MPG and EPA mileage est rates, what dimensions (length, width,. Proposal: List all DTCs in a readiness group along with additional information for each DTC such as DTC-specific readiness and other DTC-specific info (i. During this stage of the drive cycle, it's crucial that you keep throttle angle changes to a minimum. 1 Series & 2 Series. The catalyst efficiency monitor verifies that the catalytic converter is operating at a high enough efficiency rating to keep exhaust emissions within predetermined values. All Monitor Drive Trace Pre-Conditioning Requirements: - MIL must be off - Cold start (Note: cold start temperature is undefined) Driving Procedure 1) Warm engine up for five minutes (must reach closed loop) 2) Drive (with steady throttle) at a speed between 40 and 60 mph for 8 minutes. On OBD-II, a drive cycle is simply defined as starting the engine and driving the vehicle long enough to raise the coolant temperature by at least 40 degrees Fahrenheit. Fail at the beginning because the catalyst flag is not ready. My friend was the one that found the values and don't know what they are but there is a graph that shows the values as the vehicle runs on an OBD scanner/monitor. it's kinda different for different vehicles. It is important to let the vehicle coast, gradually slowing down to 10mph. I performed the drive cycle listed in the PDF that's floating through here and it failed to reset my OBDC for a readiness check. During this time, in addition to the diagnostics performed in step 4, the catalyst monitor diagnostics will be repeated. The correct drive cycle for your vehicle can vary greatly, depending on the vehicle model and the monitors that need to be reset. The temperature should be at 1/3 of the scale or higher. Didnt know if anyone new if this was normal or if there was any particular drive cycle that would speed it up. Try to maintain constant throttle as much as possible during the steady state speed portions of the drive cycle Cautions: 1. Clear all DTCs and perform a PCM reset. Most vehicles will need to be driven at highway speed (less than 50 mph) (73km/h) for a few minutes. The following is the recommended OBD II monitor drive cycle for many General Motors vehicles. 3: Catalyst Monitor (O2S Type) 40 – 50 mph (64 – 88 km/h) 35 – 45 mph (56 – 72 km/h) Idling IG SW off Warm up ECT≥176 F IAT < 50 F = 7 min IAT > 50 F = 3 min (a) 7 min (b) Preconditions The monitor will not run unless: MIL is OFF. It is possible to complete diagnosis of the DTC by performing the indicated drive cycle. We are providing You more info on the meaning of every single fault code on Paccar MX13 EPA10. Certain Models 1996-2002. A Drive Cycle is a special test drive that duplicates the scenario of a person starting her car and making a short freeway trip, as if she were driving to work. After idling for. Cruise at 72 to 104 Km/h (45 to 65 MPH) for 10 minutes (avoid sharp turns and hills) Note, to initiate the monitor: TP MODE should = PT, EVAPDC must be > 75%, and FLI must be between 15 and 85%. Possibly even multiple trips or multiple warm up cool down cycles. It has a K&N cold air system and box, and Flowmaster after axle mufflers. The OBDII drive cycle begins with a cold start (coolant temperature below 122 degrees F and the coolant and air temperature sensors within 11 degrees of one another). vehicle goes through its drive cycle the monitors will be reset and the check engine light will turn off and at that point you will know when you can take it in for an OBD II test. Ok got 5 more drive cycles completed over the weekend and still waiting on 02 heater and catalyst test to run. Usually driving a few hundred miles over in both city and highway conditions and over the course of a week is enough to get the drive cycle to run and get the emission monitors ready (or COMPLETE) for the smog test. 3) Rev engine in neutral or park to 3,800-4,200 rpm for 15 seconds. Catalyst Monitor Drive Trace Idle for 5 minutes. Let off the accelerator pedal. If the catalyst is marginal or the battery has been disconnected, it may take 5 complete driving cycles to determine the state of the catalyst. Scan-Tool Drive Cycle: The monitors do two test, continuous and non continuous. Refer to the installation chapter in the Cisco Catalyst 4500 Switch Hardware Installation Guide that came with the switch to connect the router to a PC or terminal. DRIVE FCTT recommended 1- to 1. I think i have that squared away but i can't get my Cat and Evap system to go to ready. Step Drive Cycle Procedure Purpose of Drive Cycle Procedure Drive Cycle Preparation 1 Install scan tool. A week of late night and early morning drives to miss traffic on the Los Angeles Freeways and roads was a waste of time. Decelerate. ) Before reaching normal op. Catalyst Efficiency Monitor Drive Cycle. The programming may not take into account real-world conditions. I was wondering what could cause this issue other than the drive cycles not being completed. Try to avoid hard acceleration. When I use my scan tool it would show a red X on the catalyst monitor and also there would be a Yellow exclamation mark with a triangle on it. ️Link to Great Hood prop http://. •To complete a drive cycle, all five trip monitors must be completed followed by the catalyst efficiency monitor. How many drive cycles have you done? How long ago did you change the battery? Are you sure there's not a problem with your battery or charging system that's constantly resetting the readiness monitors? As far as it being foolproof, yeah pretty much. com The Drive Cycle and Emissions Readiness Monitors are methods used by the powertrain control module (PCM) to determine whether an emissions system repair was properly performed. ️Link to Great Hood prop http://. (they have problems)! if you have no. I have been watching monitors and it has not checked catalyst monitor yet and it has been about 160 miles and it hasn't checked it. It’s also designed to simulate typical driving conditions and will vary depending on the how the vehicle is equipped. Run the car around 55 mph for a few minutes, and make sure the O2 goes high. Next idle for another 2 1/2 minutes with the A/C compressor and rear defroster on and while the transmission is in Drive (D); only of automatic transmission. Evaporative Monitor (EVAP): Prerequisite: No trouble codes present, Fuel tank between 1/4 and 3/4 full. The power-train control module (PCM) sets a monitor to “Ready” or “Complete” after an appropriate drive cycle has been performed. Now that Ive said all that. For each vehicle, prep-cycle simulations were followed by soak. Note: Original 1996 Chrysler vehicles do not maintain OBD2 readiness after engine shutdown, however this is a fix that is available at a dealer. It is possible to complete diagnosis of the DTC by performing the indicated drive cycle. Drive cycles are required to run the OBD2 monitors and to test the Diesel Particulate system and the Selective Catalyst Reduction system: "The drive cycle requires that the vehicle has been driven for 12,070 km (7,500 mi) or that the EGT12 temperature has been greater than 550°C (1,022°F) for a minimum of 120 minutes for some monitors to run and complete at hot idle. After the repair for the DTC, per-form a necessary drive cycle and make sure the function recovers and the DTC is recorded. All on-road vehicles and trucks sold in North America are required to support a subset of these codes, primarily for state mandated emissions inspections. Try to maintain constant throttle as much as possible during the steady state speed portions of the drive cycle Cautions: 1. A Monitor must be listed as Ready to pass an emis-sions test. I've been driving the truck per the instructions on the TSB readiness monitor drive patterns for 5-6 times and as closely as possible (catalyst monitor 02S type. Normal driving will eventually reset the monitors but it can take a long time if you are doing short commutes. TPS approximately 0. It is a friends truck and he has driven through the Toyota TSB drive cycle and the generic GM drive cycle countless times and commuted for over 1000 miles and 5 months with no code or complete monitor. Install scan tool. Decelerate. The drive cycle is explained in more details in the next paragraph. It's the o2 sensor and catalytic monitors. Didnt know if anyone new if this was normal or if there was any particular drive cycle that would speed it up. P ark the car for 10½ hours in an area or facility with an ambient temperature from 40° — 113°F. An effective catalyst will have fewer downstream switches than it has upstream switches i. These monitors start from the beginning whenever the monitoring cycle meets the criteria to run a readiness test. Get the engine up full to operating temperature and shut the engine off. This procedure ensures your computer's monitors are able to run their diagnostics. Furthermore, systems which use averaging, may. During this stage of the drive cycle, it's crucial that you keep throttle angle changes to a minimum. when a manufacturer-specific drive cycle is unsuccessful. Anyhow, that 50 mile "drive cycle" may have too much freeway time and not enough idle time and lower speed (surface street) cruising time. 5) Turn key off, leave off for ten minutes (to run O2 sensor heater monitor). Proposal: List all DTCs in a readiness group along with additional information for each DTC such as DTC-specific readiness and other DTC-specific info (i. This drive cycle relearns the OBDII system and rechecks all of the emissions component’s individual systems. Click to expand Thanks Mr. The tests performed are manufacturer dependent. Basic stuff like vapor recovery operation, pre and post cat sensors, knock, temp, load calc, transition from open to closed loop, misfire, etc. - Fuel level is between 15% and 85% full. Changing the monitor(s) to "Ready" In order to get the OBDII system to set the monitors to "Ready," the vehicle needs to be driven through a drive cycle/drive trace. Here is a drive cycle criteria for self test verifications. 0l manual transmission drive cycle If you drive or plan to buy Dodge Stratus Sedan then you should know what all the characteristics mentioned in the pamphlet mean to you. The cat monitor, nox, DPF and Exhaust pressure monitor are all indicating that they are incomplete on testing. Drive Pattern; Connect an intelligent tester. Here in Utah we can have one not ready and pass so i just need one to change. This schedule is best driven on a dyno if available, otherwise find the best road with least traffic. complete drive cycle will “set” the readiness monitors so that future faults can be detected. For an I/M Monitor to be Ready, the vehicle must have completed a drive cycle (been driven long enough under proper con-ditions to have completed a drive cycle). Proposal: List all DTCs in a readiness group along with additional information for each DTC such as DTC-specific readiness and other DTC-specific info (i. 3) Stop and idle for 3 minutes. Drive the vehicle allowing speed to fluctuate between 35-45 mph (56-72 km/h) for 16 minutes. Make sure you get the right one for your vehicle,they. 5) Stop the vehicle and idle in drive or neutral for 40 seconds. Successful repairs will cause the computer to automatically clear the diagnostic trouble codes (turns off the check engine light). Compared to the OBD2 drive cycle, flywheel adaptation is a piece of cake. If the Oxygen Sensor and Catalyst Monitors are also not ready, the most probable cause is a weak battery. com The Drive Cycle and Emissions Readiness Monitors are methods used by the powertrain control module (PCM) to determine whether an emissions system repair was properly performed. 1) Warm engine up for five minutes (must reach closed loop) 2) Drive (with steady throttle) at a speed between 40 and 60 mph for 8 minutes. Here’s a Ford 2014 Catalytic Converter drive cycle example. A/C System. If you do have the specific criteria please post it here. I've been driving the car around normally for another couple of days and the catalyst now shows ready, but not the evap monitor. Pre-Conditioning Requirements: ECT (Engine Coolant Temperature) must be 176E F (80E C) or more. Turn off all accessories in the vehicle. Generic Drive Cycle. An effective catalyst will have fewer downstream switches than it has upstream switches i. Drive 5 min at steady speed between 30 and 60 mph 2. So you still might just be able to drive the readiness monitors to completion but you probably will have to change your 'drive cycle'. About one week of combined city and highway driving is usually enough to allow the monitors to reach complete status. Make sure you get the right one for your vehicle,they. They are EVAP, Catalyst, and others. Must complete EGR 4. This is a transmission drive cycle but it's very similar to a get emisions ready cycle. For vehicle specific drive cycle, consult the vehicle’s Owner’s Manual. Exhaust leaks and bad cats. See full list on obdii. OBD drive cycle. ' If the output of the monitor is not ready, what does that indicates? It signifies that the requisite Drive Cycle has not run completely; thus, the catalyst monitor has not tested the catalytic converter. Establish and monitor line side inventory levels and. (they have problems)! if you have no. These monitors start from the beginning whenever the monitoring cycle meets the criteria to run a readiness test. Anyhow, that 50 mile "drive cycle" may have too much freeway time and not enough idle time and lower speed (surface street) cruising time. If the catalyst is marginal or the battery has been disconnected, it may take 5 complete driving cycles to determine the state of the catalyst. * Hold Steady Speed. I just made that up but it is not far off from some of the drive cycles I have seen, they can be pretty cryptic and difficult to set successfully. Start engine and bring to normal operating temperature > 82 °C (180 °F). Note: Due to the limited preconditions provided with this drive trace, NCVECS recommends using the monitor specific drive traces for Chrysler vehicles. I've driven the GM Drive cycle completly and in parts many times and all the monitors have completed except the Heated O2 Sensor and Catalyst. The purpose of completing an OBD II drive cycle is to force the vehicle to run its on. The Honda Drive Cycle is included in recent owners manuals. off, the readiness monitors are set. If the catalyst is marginal or the battery has been disconnected, it may take 5 complete driving cycles to determine the state of the catalyst. 4) Drive (with steady throttle) at a speed above 20 mph for 2 minutes. 3) Stop and idle for 3 minutes. Catalyst Monitor Drive Trace Pre-Conditioning Requirements: - MIL must be off. Detailed analytics of each bundle provide dynamic data exploration, real-time filtering, and drill-down to patient-level detail. These Monitors are part of the OBDII protocol so that the car can be warmed up, and driven to see all of the smog stuff is working. I performed the drive cycle listed in the PDF that's floating through here and it failed to reset my OBDC for a readiness check. Drive Cycle E46 (1999 - 2006) Home; BMW Models; BMW Events; Forums. While discussing the catalyst efficiency monitor: Technician A says that if the catalytic converter is not reducing emissions properly, the voltage frequency increases on the downstream HO 2 S. Drive Cycle Recommendations:. Pre-Conditioning Requirements: MIL must be off. - Engine must have run at least 90 seconds - Engine between 1,350 & 1,900 rpm. Bring the vehicle hack to the shop, hook up the scan tool and look at the status of the readiness monitors. Pero por si fuera poco, te hallas a un paso de descargar mp3 gratis en alta calidad como no existen en otras plataformas. It is possible to complete diagnosis of the DTC by performing the indicated drive cycle. For example, here you can find out everything about MPG and EPA mileage est rates, what dimensions (length, width,. But we always have problems getting the monitor to say ok at the dealership. Turn off all accessories in the vehicle. If the catalyst is marginal or the battery has been disconnected, it may take 5 complete driving cycles to determine the state of the catalyst. This is an intermittent monitor (CATALYST) Check engine indicator illuminates if the ECU detects the above malfunction condition in two consecutive drive cycle DIAGNOSTIC MONITORING TEST RESULTS available. Drive Cycle O2 sensor monitor will not run. However, it also states that the engine should be allowed to idle until it reaches operating temprature before taking it out for the drive cycle. Drive cycles vary depending on the vehicle and the monitor that needs to be reset. Non-continuous monitors are just like the label says, “non-continuous”, and they only run under a specific set of driving conditions, i. * Hold Steady Speed. It is necessary to perform the drive cycle listed below if DTC is not found in the Inspection Mode. Scan-Tool Drive Cycle: The monitors do two test, continuous and non continuous. Catalyst Efficiency Monitor Drive Cycle. Idle for 20 seconds again. The Mode $06 results validate that the failure is active as of the last drive cycle. The chart above illustrates some of the monitors and steps involved. Drive cycles vary among vehicles and for each monitor in any particular vehicle. The power-train control module (PCM) sets a monitor to “Ready” or “Complete” after an appropriate drive cycle has been performed. I've been to the tester 4 time,it wont make it thru emissions cause the CATALYST monitor wont get ready. 3: Catalyst Monitor (O2S Type) 40 – 50 mph (64 – 88 km/h) 35 – 45 mph (56 – 72 km/h) Idling IG SW off Warm up ECT≥176 F IAT < 50 F = 7 min IAT > 50 F = 3 min (a) 7 min (b) Preconditions The monitor will not run unless: MIL is OFF. So when I went to get a renewal extension at the DMV the guy in the emissions lab was able to look up my car and give me a print out of the drive cycle. To reset all the emission data monitors to the "pass" state you will have to complete three full drive cycles. 88 ft-lbs of torque. All Monitor Drive Trace Idle for 5 minutes Warm engine up for five minutes. - Fuel level is between 15% and 85% full. Older cars might not support this feature. Because there are so many different makes and model of vehicles, we cannot include all of the individual drive cycles in this reference program. Running through the drive cycle sets all the system status "flags" so that subsequent faults can be detected. require the drive cycle to be completed more than 2 times. Drive Pattern; Connect an intelligent tester. If the catalyst is marginal or the battery has been disconnected, it may take 5 complete driving cycles to determine the state of the catalyst. After idling for. During this time, in addition to the diagnostics performed in step 4, the catalyst monitor diagnostics will be performed. Comprehensive Components. Oxygen sensors appear to be switching as needed. Drive cycles vary depending on the vehicle and the monitor that needs to be reset. It is a friends truck and he has driven through the Toyota TSB drive cycle and the generic GM drive cycle countless times and commuted for over 1000 miles and 5 months with no code or complete monitor. I looked up what it takes to reset readiness monitors for the catalyst system and it doesn’t take much. 5 engine? I have 2 monitors still not ready to pass inspection for the pass 2 months. The purpose of the OBD2 drive cycle is to let your car run on-board diagnostics. •All Onboard Diagnostic Monitors are cleared when the battery is disconnected or when the Powertrain Control Module (PCM) is cleared with the Scan Tool. During this time, in addition to the diagnostics performed in step 4, the catalyst monitor diagnostics will be performed. Do not shift, touch the brake or clutch. A catalyst efficiency monitor DTC can be stored after three identical malfunctions are detected on three separate drive cycles. If the catalyst is marginal or the battery has been disconnected, it may take 5 complete driving cycles to determine the state of the catalyst. NOTE: Drive cycles for Acura models are also known as "System Readiness Codes". @dpfast Sensors never cause a P0420. ODB state print out says the computer has not finished its ODB reset yet. 6L 115 HP L4 (A) GA16DE-GAS-FI-N (This should work for Sentra and most likely all GA16DE engines) ALL MONITORS-ALL MODELS, ALL ENGINES. If these conditions have been met, the engine must have run at least 90 seconds, and the engine speed must be between 1,350 and. by Ballard Power Systems and simulated drive cycle data to monitor total amount of CO 2 evolved. Once a monitor is set as “Ready” or “Complete”, it will remain in this state. The Mode $06 results validate that the failure is active as of the last drive cycle. This schedule is best driven on a dyno if available, otherwise find the best road with least traffic. Please complete the following routine, this will prime, purge and pressure test the. Oxygen Sensor Monitor: Start the engine and allow to idle until the coolant temperature reaches at least 82 degrees C (180 degrees F). Some vehicles run the monitor at idle in drive. There is a use note in the Chrysler instructions suggesting that one use the specific drive cycles listed for each monitor rather than rely on the "all monitor" drive cycle. Do not drive the car, touch the gas, or even look at the gas pedal for these 5 minutes, as the ECU is remapping itself. The output of the catalyst monitor can be either 'not ready' or 'ready. Open that box, and pull the "ECU" fuse. Driving your Honda Accord in the manner below should make the required Emission Monitors “Ready”. We are providing You more info on the meaning of every single fault code on Paccar MX13 EPA10. Advanced oxidation processes can potentially eliminate organic contaminants from industrial waste streams as well as persistent pharmaceutical compone…. In some cases, it may even be necessary to complete the prescribed drive cycle several times before the catalyst monitor will run. Same as OBD-II Same as OBD-II OXIDES OF NITROGREN (NOx) CONVERTING CATALYST MONITORING Selective Catalyst Reduction Catalyst Efficiency Monitor Selective Catalyst Reduction Feedback Control. E82 / E87 / E88 / F20 1 Series (2008 - 2014) Heated Catalyst Monitor EDIT. Here is a drive cycle criteria for self test verifications. Continue to drive the vehicle for at least 5. If the catalyst is marginal or the battery has been disconnected, it may take 5 complete driving cycles to determine the state of the catalyst. Just I/M monitor says Catalyst Mon - Incomplete. Drive Cycle (This is based on Volvo TSB bulletin number 25-19 dated 6-30-2004) Drive Cycle Check List:. NOTE: The ignition key must not be on prior to the cold start otherwise the heated oxygen sensor diagnostic may not run. •All Onboard Diagnostic Monitors are cleared when the battery is disconnected or when the Powertrain Control Module (PCM) is cleared with the Scan Tool. If the engine coolant thermostat is stuck open it will be too cold and never run the test. Here’s a Ford 2014 Catalytic Converter drive cycle example. I've been driving the truck per the instructions on the TSB readiness monitor drive patterns for 5-6 times and as closely as possible (catalyst monitor 02S type. Some vehicles run the monitor at idle in drive. If you need tips on how to get ready for emissions, check out this video! https:. 2020 Suzuki KingQuad 400 ASi PETE'S CYCLE CO. Drive cycles vary depending on the vehicle and the monitor that needs to be reset. During this time, in addition to the diagnostics performed in step 4, the catalyst monitor diagnostics will be performed. 2000 Nissan Maxima GLE 3. 1a, 1b, 3a and 3b show the available Catalyst Monitor data. This procedure ensures your computer's monitors are able to run their diagnostics. Unplugged the. ECT (Engine Coolant Temperature) must be 176E F (80E C) or more. The Drive Cycle and Emissions Readiness Monitors are methods used by the powertrain control module (PCM) to determine whether an emissions system repair was properly performed. ' If the output of the monitor is not ready, what does that indicates? It signifies that the requisite Drive Cycle has not run completely; thus, the catalyst monitor has not tested the catalytic converter. Ambient temp vs ECT temp at start up combined with drive time at certain speeds are what ultimately trigger the monitor, when we perform a drive cycle post code clear the catalyst and Evap monitors are the last two to come back online, and sometimes can take days or weeks. The correct drive cycle for your vehicle can vary greatly, depending on the vehicle model and the monitors that need to be reset. Some vehicles have very specific drive cycles that must be followed before the catalyst monitor will run. 5 (idle switch is ON) Engine coolant temperature greater than 170 degrees F. Descargar MP3 Catalyst Not Ready For Emission Test Cat Monitor Inc Get Catalyst Moni Gratis Acabas de hallar Catalyst Not Ready For Emission Test Cat Monitor Inc Get Catalyst Moni. Try to avoid hard acceleration. Step Three: Take Note of Which Drive Cycle Monitor(s) Did Not Complete. So I've read up on the drive cycles. For each vehicle, prep-cycle simulations were followed by soak. A drive cycle consists of engine start-up, vehicle operation (exceeding starting speed), overrunning and engine stopping. Generic Drive Cycle. An OBD II drive cycle is a set of driving conditions designed to enable the supported OBD II readiness monitors. Oxygen Sensor Monitor: Start the engine and allow to idle until the coolant temperature reaches at least 82 degrees C (180 degrees F). Bypasses engine soak timer. The drive cycle is explained in more details in the next paragraph. Some vehicles run the monitor at idle in drive. drive cycle). Since DTCs Cleared ===== Catalyst Mon. The PCM compares the signals from the upstream and downstream oxygen sensors to determine the state of the converter. The purpose of the OBDII drive cycle is to run your vehicle's onboard diagnostics. When you turn the ignition to On-2 without starting the engine, the MIL will come on for 20. Replacing the catalyst will not affect the monitor. Universal X431 Pro Scan Tool by Launch Tech®. Mitsubishi has provided driving cycles in its service information to allow monitors to operate. ) Step Three is the most important part of the Range Rover Drive Cycle, the road test. Evap System Mon. ' If the output of the monitor is not ready, what does that indicates? It signifies that the requisite Drive Cycle has not run completely; thus, the catalyst monitor has not tested the catalytic converter. IAT (Intake Air Temperature) must be 14E F (-10E C) or more. Mechanic said, let engine cool off for 8 hours, idle for 2 mintues and drive around 50mph for 20 minutes, did that still no good. Hold a steady speed of 88km/hr (55mph) for five minutes. It is necessary. Hold a steady speed of 55mph (88km/hr) for five minutes. Bypasses engine soak timer. If the engine coolant thermostat is stuck open it will be too cold and never run the test. If the catalyst is marginal or the battery has been disconnected, it may take 5 complete driving cycles to determine the state of the catalyst. It depends on the O2 sensors being operated at the correct temperature. Advanced oxidation processes can potentially eliminate organic contaminants from industrial waste streams as well as persistent pharmaceutical compone…. This drive cycle relearns the OBDII system and rechecks all of the emissions component's individual systems. Are you sure you followed the drive cycle precisely and started with a cold car that sat overnight? If so, there may be a fault that’s preventing the readiness setting, in which case the fault (perhaps an O2 sensor?) will need to be corrected, then the car driven to set the monitors. As far there being a "broken monitor" that's not how it works. The Honda Drive Cycle is included in recent owners manuals. I have found best practice is to drive the speed limit and NOT FASTER THAN 50mph or 80km. When monitor says Not Enabled, test has run. I had a vehicle that had a misfire for a long period of time. Catalyst monitor not ready finally FIX. Allow the vehicle to run at idle until warmed up. Must complete Fuel System test 2. I have driven 1500m since the reset. The OBD-II diagnostic system is reinitialized by performing the DTC cancellation procedure or disconnecting the negative battery cable. 3) Rev engine in neutral or park to 3,800-4,200 rpm for 15 seconds. catalyst degradation The U. A variety of conventional, stop-start and hybrid electric vehicles have been simulated over standard drive cycles using this model. Ok got 5 more drive cycles completed over the weekend and still waiting on 02 heater and catalyst test to run. Until you do the specific drive cycle the ECM is looking for it will not run/pass the monitor. The chart above illustrates some of the monitors and steps involved. •All Onboard Diagnostic Monitors are cleared when the battery is disconnected or when the Powertrain Control Module (PCM) is cleared with the Scan Tool. Freeze Frame Data-- When an emissions related fault occurs, the. 5 engine? I have 2 monitors still not ready to pass inspection for the pass 2 months. I have seen monitors like the Catalyst not clear because of a trouble code ready to pop up. The power-train control module (PCM) sets a monitor to “Ready” or “Complete” after an appropriate drive cycle has been performed. Check prices & reviews on aftermarket & stock parts for your Stratus Automatic Transmission Fluid. If the catalyst is marginal or the battery has been disconnected, it may take 5 complete driving cycles to determine the state of the 8. Bingo! Set last two remaining monitors: Catalyst and Evap> Apparently, thermostat is staying open and thus coolant not reaching 176 degrees which is the precondition set by programmers for the monitors to even start. The test is carried out once per drive cycle and lasts approx 6 seconds. empty, the evaporative emissions monitor won’t run. A Monitor must be listed as Ready to pass an emis-sions test. Fuel level must be above 15% 3. In order to set these Monitors, you need to go through a prescribed Drive Cycle. CATALYST MONITOR (ACTIVE AIR-FUEL RATIO CONTROL TYPE) Preconditions The monitor will not run unless: The MIL is OFF. We are providing You more info on the meaning of every single fault code on Paccar MX13 EPA10. catalyst degradation The U. The Evap "bypassing" procedure is described in the following drive cycle. Chrysler Drive Cycle Information. When monitor says Not Enabled, test has run. I have been driving forever trying to get my Catalyst Monitor to come back on, my codes and everything were erased and I have been doing the recommended GM drive cycle and someone told me to hop on the freeway and go 55mph for 30 miles. Let the car idle to warm up then drive, cold start and immediate drive, cruised at 40 mph for 5 minutes, and ran the piss out of just because that's what its for. It is necessary. Establish and monitor line side inventory levels and. , system is in Open Loop where ECM don't receive or ignore feedback cuz of feedback from ECT sensor. The PCM compares the signals from the upstream and downstream oxygen sensors to determine the state of the converter. Accelerate to 40-55 MPH at 25% throttle and maintain speed for five minutes. Jaguar S-TYPE P DTC OBD II 2003 Model Year. The Mode $06 results validate that the failure is active as of the last drive cycle. Repeat the drive cycle, if necessary. Hold Steady Speed. Have you performed the drive cycle for the catalyst monitor? If not, here's the drive cycle. To reset all the emission data monitors to the "pass" state you will have to complete three full drive cycles. Catalyst monitor: Pre-req: no codes present, IAT between -4 and 176 deg f; ECT is above 75 deg f; barometric pressure above 72kPa, STFT between -20% and 20 % -Idle vehicle 5 minutes until it is in closed loop -drive 5 min at steady speed above 50 mph -idle 2 min in drive (auto) or neutral (manual). Drive cycles vary among vehicles and for each monitor in any particular vehicle. Let the rear start going up, and accelerate to around 45 mph, and make sure the rear O2 goes high. CATALYST (NON-A/F SENSOR) MONITOR DRIVE CYCLE. So you can’t use one car maker’s drive cycle on any other vehicle. @dpfast Sensors never cause a P0420. Technician B says that if a fault occurs in the catalyst monitor system on three drive cycles, the MIL will be illuminated. Hold a steady speed of 88km/hr (55mph) for five minutes. The drive cycles vary by manufactueres and models. Once a monitor is set as “Ready” or “Complete”, it will remain in this state. How many drive cycles have you done? How long ago did you change the battery? Are you sure there's not a problem with your battery or charging system that's constantly resetting the readiness monitors? As far as it being foolproof, yeah pretty much. A Monitor must be listed as. There are several "Monitors" that need to be set. Scan-Tool Drive Cycle: The monitors do two test, continuous and non continuous. During this time, in addition to the diagnostics performed in step 4, the catalyst monitor diagnostics will be performed. This is a 98 Camaro. Try to maintain constant throttle as much as possible during the steady state speed portions of the drive cycle Cautions: 1. Completing the drive cycle successfully without any issues in each system will update your readiness monitors to a status of complete. Before that I drove the car for a good 200 miles but no particular drive cycle. It should get the catalyst monitor, as well as the EGR, EVAP and AIR monitors, ready for the smog inspection. Drive Cycle (This is based on Volvo TSB bulletin number 25-19 dated 6-30-2004) Drive Cycle Check List:. Usually driving a few hundred miles over in both city and highway conditions and over the course of a week is enough to get the drive cycle to run and get the emission monitors ready (or COMPLETE) for the smog test. Go to a highway and drive between 50-60mph for 20 minutes. The dealer says the car needs a new "computer". Drive Cycle (1 of 2) •A monitor is complete after it has been checked for function and cleared by the PCM. Seems like catalyst readiness requires sustained hwy cruising of 5min; which depending on where you live in CA can be difficult to do. Drive at a steady speed between 40 and 70 MPH for 10 minutes. To reset all the emission data monitors to the "pass" state you will have to complete three full drive cycles. 15 minutes to warm up and run the evaporative emissions test. The PCM compares the signals from the upstream and downstream oxygen sensors to determine the state of the converter. When you turn the ignition to On-2 without starting the engine, the MIL will come on for 20. Failing to complete the diagnostic drive cycle can cause the vehicle to fail the retest if the supported monitors are not set to ready. Must complete EGR 4. Basically, drive like your grandma. You will need to do a Driving Cycle if you have replaced the battery, disconnected the battery, or cleared the codes after a repair. To ensure completion of the Readiness Monitors, avoid sudden changes in vehicle load and speed (driving up and down hills and/or sudden acceleration). Until you do the specific drive cycle the ECM is looking for it will not run/pass the monitor. 6) Drive at speeds between 25 and 45 mph for 15 minutes. 0 Cell Temp Hum idif er Temps Shut-down Ai rpu ge Voltage Start Current up Operation with DOE Drive Cycle Protocol • Constant Stoich - Fows lead current (4 sec. 2mpg on the combined cycle and CO2 emissions are 193g/km. Oxygen Sensor Monitor: Start the engine and allow to idle until the coolant temperature reaches at least 82 degrees C (180 degrees F). Release the throttle and let the vehicle go into fuel cut. Ensure that fuel filler cap is fully closed (minimum three clicks). Decelerate: This will perform the same diagnostics as in the first Deceleration. •To complete a drive cycle, all five trip monitors must be completed followed by the catalyst efficiency monitor. , a ratio closer to zero. Please complete the following routine, this will prime, purge and pressure test the. ” In early systems, 1996-1999, the drive cycle was often very simplistic, consisting of engine start, warm-up,. Allow the vehicle to run at idle until warmed up. Exactly what does it take to complete the catalyst monitor. To perform an OBDII Driving. ) Before reaching normal op. What I forgot about is the SMOG test I had to run before I sign the car over. To reset all the emission data monitors to the "pass" state you will have to complete three full drive cycles. Hold a steady speed of 88km/hr (55mph) for five minutes. Since DTCs Cleared ===== Catalyst Mon. I've been driving the truck per the instructions on the TSB readiness monitor drive patterns for 5-6 times and as closely as possible (catalyst monitor 02S type. All Monitor Drive Trace Idle for 5 minutes Warm engine up for five minutes Smoothly acceerate and maintain a speed between 40 to 60 mph for 8 minutes. Morning drive cycles are great to insure temperature is within range. The most troublesome out of those monitors to trigger are the Catalyst and the Evap. Because the monitors are a self-check routine that the driver does not have to initiate, the best way to get them ready to perform a self-test is to drive the vehicle. Failing to complete the diagnostic drive cycle can cause the vehicle to fail the retest if the supported monitors are not set to ready. During this time, in addition to the diagnostics performed in step 4, the catalyst monitor diagnostics will be performed. Drive cycles will get most things ready eventually (Unless your ecu or other modifications were done to wiring) but sometimes I see cars with 1000 + miles and all types of drive cycles not get ready, replace a cat or a vent hose over fuel tank (for example) and it smogs fine. During this time, in addition to the diagnostics performed in step 4, the catalyst monitor diagnostics will be performed. Turn off all accessories in the vehicle. You will need to do a Driving Cycle if you have replaced the battery, disconnected the battery, or cleared the codes after a repair. determine if the driving cycle for your vehicle is known. , a ratio closer to zero. (2002 MY vehicles will run monitor at temperatures below 14E F by cycling key to OFF and repeating drive trace). A Drive Cycle is a special test drive that duplicates the scenario of a person starting her car and making a short freeway trip, as if she were driving to work—it can be performed at our auto repair location in Nashua NH. Are you sure you followed the drive cycle precisely and started with a cold car that sat overnight? If so, there may be a fault that’s preventing the readiness setting, in which case the fault (perhaps an O2 sensor?) will need to be corrected, then the car driven to set the monitors. Coolant needs to be within 0 to 40C (0 to 104F) at start 2. Cycle key OFF, then ON. I have read the TSB and followed the drive cycles but it still doesn't reset. Decelerate. Start engine and bring to normal operating temperature > 82 °C (180 °F). Accelerate to 40-55 MPH at 25% throttle and maintain speed for five minutes. The following are some sample drive cycles for the catalyst monitor to run: Ford: The catalyst monitor will not run until the HEGO (oxygen sensor) monitor has run and completed successfully with no faults found. During this time the EGR, Purge and Trim diagnostics will be preformed. Turn key on with the engine off. - Engine must have run at least 90 seconds - Engine between 1,350 & 1,900 rpm. A drive cycle consists of engine start-up, vehicle operation (exceeding starting speed), overrunning and engine stopping. Ensure that fuel filler cap is fully closed (minimum three clicks). So you still might just be able to drive the readiness monitors to completion but you probably will have to change your 'drive cycle'. has any one seen this problem before?. Assuming the O2 sensor fixed the problem, just driving it will eventually show the catalyst monitor as "Ready". Drive Cycle A: PROCEDURE It is necessary to perform the drive cycle listed below if DTC is not found in the Inspection Mode. No other trouble codes have been set. 2) Rev engine in neutral or park to 2,300-2,700 rpm for 15 seconds. 5 miles between 45-112 km/h (28-70 mph) with the vehicle reaching at least 80 km/h (50 mph). Drive at a steady speed between 40 and 70 MPH for 10 minutes. Ensure that fuel filler cap is fully closed (minimum three clicks). I've been driving the truck per the instructions on the TSB readiness monitor drive patterns for 5-6 times and as closely as possible (catalyst monitor 02S type. If the catalyst is marginal or the battery has been disconnected, it may take 5 complete driving cycles to determine the state of the catalyst. Get the engine up full to operating temperature and shut the engine off. Jeep, Chrysler, and Dodge Drive Cycle. Click to expand Thanks Mr. 4) Drive (with steady throttle) at a speed above 20 mph for 2 minutes. Drive the vehicle at a steady 55 mph for three more minutes. Toyota cat was installed over 3,500 miles ago and monitor will still not run. off, the readiness monitors are set. At this stage all sensors are monitored (O2, MAF, ECT,etc. Replacing the catalyst will not affect the monitor. So, start the engine, let it idle for 20 minutes, then take it for a drive. Hold Steady Speed. For rear o2 to complete on same drive cycle, may take more than one drive cycle. Morning drive cycles are great to insure temperature is within range. Decelerate. Drive vehicle steadily between 1700 – 2500 rpm for 5 minutes. Select appropriate Vehicle & Engine qualifier.