How To Turn Off Check Engine Light After Removing Catalytic Converter

The car has a little less than 5k miles. It might have fallen off, got a hole in it, or been removed for more horsepower, but without it, your car will always have a check engine light if you still have a functioning O2 sensor. For instance, it might cause the catalytic converter to overheat and even cause a fire. A catalytic converter is an integral part of your car's emissions control system that is responsible for managing pollution and minimizing you. the converter is a part that makes backpressure. But the sensors have to gather enough data before the car can pass inspection. O2 sensors measure the oxygen levels in your truck's exhaust gas before and after passing through the catalytic converter. Keep Learning. sometimes itll kick on right after i turn the ex on other times it wait for 30 miles oter times it wont come on for a day or so. After changing out the O2 sensors on the wife's corolla, we were still throwing computer codes. 5 miniature catalytic converter,which helps to get rid of the modified exhaust or the inspection engine light after removing the catalytic converter. It's a hot job (literally) that operates at temperatures of 600 to 1000 degrees F. Check engine light came on and a couple more lights came on for an instant. The P0420 Check Engine Light is triggered by a reduction in catalytic converter efficiency. 0L / 2001-2006 Mazda Tribute 3. MIL - Malfunction Indicator Light. I'm trying to figure out the location of this O2 sensor. If it does, that means the catalytic converter is NOT doing its job and the computer turn on the check engine light and set code P0430. In case of multiple o2 sensors the unit must be wired up to the post sensor after the removed catalytic converter. The O2 sensor tells the engine how much fuel to give it. But on the way home from the dealer the light came on. Turn your key into the "OFF" position, and let the car sit for about one minute. Disconnect the battery. Volkswagen Check Engine Light and other warning lights. And, how can I get rid of the check engine light? I've heard that a simple tune with your car, like a protune, stage 2 tune or a Cobb tune can get rid of the code, is this true? If not, is there any other way to do so?. How to keep the check engine off when removing catalytic converter Clear check engine light for less than 5. Let me tell you, it is in no way ready for prime time, and in my opinion, should be the first thing to go!. The Check Engine Light can come back on within minutes, days, weeks or months. Ford Engine Light Questions And Answers. 4L V-6 or 2. When the light goes off, get ready to start counting the light flashings. Step 4 - Install the new catalytic converter. All codes are 2 digit numbers. consumer received a recall for catalytic converter failure. In some ways the check engine light is the most obvious one to diagnose, as far as which part it's pointing to as a problem. Since removing a catalytic converter lessens the burden on a car's engine by enabling engine exhaust to vacate the engine more easily, a net effect is a reduction in engine operating temperature. "Hot gas flowing over it" doesn't suppress the check engine light. Bought an OBD meter (also a great investment), said it was a catalytic converter issue - I cleared the code multiple times, but it kept coming back. Codes are triggered based on a series of events and those events can vary by manufacturer, year, engine configuration, emissions standards (Federal vs. The check engine light will stay on if you remove the converter and the vehicle will not run correctly. These conditions mean you should pull over and shut off the engine as soon as you can find a safe place to do so. My catalytic converter pass state inspection but it’s say p0420 bank 1 because of it my service light won’t turn off I also been told that my service light and check engine light are different Reply. ) Running winter fuel in warm weather. Stop in the shop, call us o. do I just remove and reinstall a fuse. Today I decided to the tackle pesky check engine light that has been on since I purchased the vehicle. Also the o2 sensor inputs help the engines computer regulate if the engine is getting too much fuel or too little so the computer will adjust for that. Whether you are looking to tow or race, we have what you need to make your truck perform. Toyota was kind enough to do a "good will" no charge warranty replacement. The catalytic converters may soak a few more HP than that. Part 6 of 6: If the Check Engine Light returns. i recently removed both cateletic converters on my 99z71 with the 5. I put together a video discussing a problem my neighbor had with Nissan Maxima four door sedan after they filled the fuel tank. Call or Shop online now. Keep Learning. The downstream oxygen sensor shows a continuous Rich condition. APDTY 5L8Z5G232EA Exhaust Manifold & Catalytic Converter Assembly Front / Left (Radiator Side Of Engine Compartment; Bank 2) For 2001-2008 Ford Escape 3. You're driving along in your car and suddenly your Check Engine Light comes on. The P0420 Check Engine Light is triggered by a reduction in catalytic converter efficiency. It then went off again the next day. and sometimes requires me to start twice to actually have the engine going, everything else seems to be fine, but the truck just hesitates when i try to speed up. There is also a trick to burn off contaminants by causing the cat to overheat after the upstream issues have been corrected. There is no change in the engine running. You don't need to use a scanner to reset Audi check engine light as long as the problem was resolved. to buy an SCT tuner - to defeat the check engine light - costing you an additional $379. Know what does what before removing it. A check engine light can indicate a broad spectrum of problems with your 2011 Volkswagen Tiguan. Yes there are technically three catalytic converters. Catalytic converters are one of those necessary evils required on your vehicle to help "clean-up" exhaust gases and keep the environment clean. The ECM moniters the exhaust before and after the conv. It's free, and for me at least, it was on the way home. I had to drive to work. Dealer diagnosed that the timing chain was stretched and out of the acceptable tolerance limit. When these components are modified to increase flow out of the engine, pumping losses are reduced. If you find that the light keeps coming on, and goes off again once you tighten the gas cap, then your gas cap is too loose. When a converter is failing, it can't do its job properly, which is to reduce gaseous emission. The service engine soon light never came on. Normally, the Service Engine Soon light will stay on until the engine is cranked, then turn itself off if no malfunctions are present. But after these repairs, were also going to need to clear the check engine light and let the car run all of its tests again to make sure that we don’t have any secondary issues going on. 2000 Bonneville code p0102 after plugs and lean code fixed. The MIL or Check Engine light comes on. But the sensors have to gather enough data before the car can pass inspection. Run down to Autozone and have them reset the light. 0L (Replaces YL8Z-5G232-AA, YL8Z 5G232. the Check Engine Light came on after 118,000 miles, I Checked the Code and it was an O2 Sensor. When it comes on, you should add fuel as soon as possible. 0L / 2001-2006 Mazda Tribute 3. Check Engine Light (CEL) has been on for some time. Top 10 check-engine-light car repairs. Either way though, you should never ignore this warning light. What Causes the Catalytic Converter to Fail. Vehicle computers use input signals from sensors to generate control signals for fuel and spark delivery, for transmission shifting and for other functions. First, lets talk about the color of the light that has come on. So he refunded her a lot of money and any time her check engine light came on he would check it out to be sure it was just those problems and turn it off, and pass her for any inspections, etc. The catalytic converter has an oxygen sensor in front and behind it. Check engine light came on and a couple more lights came on for an instant. 1997 G rand A m ETS and check engine light on. S2000 Catalytic Converter Removal and Test Pipe Install By Rob Robinette If your car is a track only vehicle or you can get away with running without a catalytic converter, installing a test pipe in its place will free up your exhaust flow and add a few horsepower. so good luck and if you fix your problem let me know =). 90°O2 Oxygen Sensor Spacer Engine Light CEL Check Bung Mini Catalytic Converter. The O2 sensor tells the engine how much fuel to give it. A drive cycle occurs when the engine is started cold and driven till it gets warm and the problem that turned on light in the first place is not detected. Don't delay in having the check engine light diagnosed. Oxidation Catalytic Converter on TDI engine The oxidation catalytic converter is the first step in post engine emissions control. San Rafael police arrested two Oakland men for catalytic converter theft following a traffic stop Saturday night. Hey guys, Strange issue that I've been trying to figure out for a while and I'm at a loss. This time I get a print out of the ones that fail (5 in total) how can a car that runs as good as this car does keeps failing. So, while this deck light is sort of lame, it has promise. Unlike earlier OBD systems that set a DTC when a sensor circuit shorts, opens or reads out of range, OBDII is primarily emissions-driven and will set codes. Is it safe to unhook the smog pump and cut off the catalytic converters? The oxygen sensors are a few feet from the exhaust manifolds and the converters are down stream. i did not know about the catalytic converter recall. The universal cat is 49 state compliant. 0 injection. check engine light came back on soon after. To me, the best use of an OBD-II engine scanner is to turn off the annoying Check Engine light, but only after investigating what the cause of the fault is. i have freeflowing. Power the Jeep Grand Cherokee's electrical system on. 2X previous when the code was cleared (no repair made), the CEL would come right back on like 15 minutes later. But the sensors have to gather enough data before the car can pass inspection. Any time an engine is operating outside proper specifications, unnecessary wear and damage may be caused to the the catalytic converter as well as the engine itself. It's free, and for me at least, it was on the way home. One thing that won't trigger a check engine light: a recent oil change that was done correctly. Check Engine Light—There are lots of problems that can cause a check engine light, but many of them are related to your emission control system, which includes that catalytic converter. However, if you raise the entire front end you can rotate the front tires when the car is IG-OFF and in P. Not only will the car need a brand-new converter, but it may be too late to fix the car. Just change from behind the cat. 0L / 2005-2008 Mercury Mariner 3. Re: Disable check engine light I bet you could do a little fancy but simple electrical work to cut power to the CEL once the car is running :P 2000 Ford Ranger XL 2. Typically when installing a higher flowing catalytic converter you will gain some extra exhaust volume, usually around about 15-20% louder without any other changes to the exhaust. However, erasing the codes does not fix the problem. As such, some drivers opt to take the catalytic converter out of their cars and replace it with a more simplified version or a more energy efficient model. Your check engine light came on when you remover the catalytic converter because your vehicle is now creating more emissions than it is legally allowed to produce. 1997 G rand A m ETS and check engine light on. Clearing any codes present will turn off your check engine light temporarily. It is possible to with a properly formulated chemical additive to clean up and remove this coating (both from O2 Sensors and Catalytic Converters) with a service procedure or with a tank additive. Don't ignore Audi check engine light even if the car drives fine. 90°O2 Oxygen Sensor Spacer Engine Light CEL Check Bung Mini Catalytic Converter. If you troubleshooting a clogged catalytic converter, it is advisable to check over the system to diagnose the problem. Headers and an exhaust absolutely make a difference in the way a Corvette feels. Call or Shop online now. Your vehicle may refuse to start. He cleared the code and told me to come back to him when the light is on. The converter is an integral part of the emissions system and without it, the check engine light will stay on. The CEL has stayed off over two cold start driving cycles. "Engine conditions such as leaky fuel injectors and engine misfires can destroy a converter long before the Check Engine light comes on. I guess that's why they say to bring used cars to a mechanic for inspection. Ihave a Toyota Highlander that I love! But it won't pass the smog check. The most common cause of failure in a catalytic converter in an older car is that it becomes so clogged that the exhaust gases can't get through it to the muffler and out of the car. Blinking Check Engine Light. The other issue to deal with is going to be a check engine light and a P0420 engine code - Catalyst efficiency below threshold. 0L (Replaces YL8Z-5G232-AA, YL8Z 5G232. How to Eliminate "Check Engine Light" after Removed Catalytic Converter ? My 2000 Beetle 1. thanks for the help guys. If you then did a bunch of highway driving before changing the oil, the specs may have dropped back into the normal range, causing the light to go off. Might take three days to complete and on the forth day, the light should be off. The very worst case scenario is when the Check Engine light indicates the impending failure of your catalytic converter. If the same code keeps popping up, you. My catalytic converter pass state inspection but it's say p0420 bank 1 because of it my service light won't turn off I also been told that my service light and check engine light are different Reply. Learn how to determine whether your car has a loose gas cap—or a serious engine problem. Ford Engine Light Questions And Answers. A catalytic converter is a part of a car’s engine that removes poisonous carbon from the engine’s emissions. Jump TG & CG, turn car on, After reading codes, remove jumper, warning light should come on. Everything works fine except for the annoying Check Engine Light in my dash. Reading up on it I am thinking he just wants to sell me a 600 dollar car repair. I took it back to Firestone and they said that 2 of the cylinders where misfiring and i need to replace the ignition coils and the corresponding spark plugs, but that i also want to get a catalytic converter cleaning or flush or something like that becuase of the unburnt gas that was running into the converter. The O2 sensor produces it’s own voltage signal to the computer. O2 Sensor Replacement- Goodbye Check Engine Light: I bought a 98 Ford ranger XLT several months ago and have been working through it fixing issues whenever time permits. What Should be Done When the MIL remains ON?. Volkswagen Check Engine Light and other warning lights. While this is often the culprit, things like plug wires, spark plugs , fuel adjustment—and lots more—can be a much less expensive solution. Of course, you may also be notified by a instrument cluster indicator light (check engine light), or a sluggishly performing engine, or poor fuel mileage. Service engine soon light came on and stayed on one morning when starting my 1996 Dodge Caravan. If this is the case, then the light needs to be reset in order to turn it off. The best thing you can do is be alert for signs of trouble, such as: reduced fuel efficiency, lack of acceleration when you step on the gas pedal, difficulty starting, emissions test failure, or the dreaded "Check Engine" light. Remove the exhaust from the rubber hangers. So, if your converter is marginal, and you did a lot of stop-and-go driving, which creates high demand for the converter, that may have turned on the check engine light. Since the 1996 models, the catalytic converter's efficiency is monitored while driving. For a check engine diagnosis Palo. Is there a way for me to disable the light? I need to get the car smogged (live in california) and this light is causing the car to fail. I wouldn't unhook the o2 sensors. Some of these issues are serious, others are not so serious. Check engine light is the most common indicator light that appears on dashboard. Hi, The light wont go off after removing the converters as the O2 sensors will not get correct readings and will immediately trip the light. Ignoring a flashing check engine light is an invitation to disaster. What Should be Done When the MIL remains ON?. A number of things can cause the check engine light to turn on. Tyre pressure warning light The tyre pressure warning light will become illuminated when the tyre pressure monitoring system detects a tyres pressure is reduced by 25% or more. Check engine light problem. When a test fails, the check engine light may come on. The service engine soon light never came on. However, erasing the codes does not fix the problem. The most common cause of failure in a catalytic converter in an older car is that it becomes so clogged that the exhaust gases can't get through it to the muffler and out of the car. Re: Removing catalytic converters turn your O2 sensors off. The best way to turn off the check engine light is to fix whatever problem has caused it to come on in the first place. I haven't gotten anywhere to get the code pulled off, but I have heard that aftermarket systems can cause the air/fuel to be too lean, and also sometimes, because there is not enough back pressure in the exhaust, the O2 sensors would not work properly. Even if you were able to turn it off by clearing the codes or disconnecting the battery, if what caused the light to come on hasn't been corrected, it probably won't stay off for very long. Part 6 of 6: If the Check Engine Light returns. Jump to Latest Follow 1 - 2 of 2 Posts. If you don't you will probably have a check engine light come on and stay on due to a code being set. catalytic converter My 2003 Toyota Corolla has 153,000 miles on it, and the check engine light just went on. It might have fallen off, got a hole in it, or been removed for more horsepower, but without it, your car will always have a check engine light if you still have a functioning O2 sensor. For instance, when your Ford check engine light comes on, it can mean a few different things. The problem went away only to return after a few days. 2005 Toyota Highlander Not Ready for Smog Test. Quick ways to fix a P0420 code: Check the exhaust system for potential leaks; Use Catalytic Converter Cleaner to remove any build-up in the system. A catalytic converter is an integral part of your car’s emissions control system that is responsible for managing pollution and minimizing you. If it's loose, it can mess with the pressure in your fuel system enough to set off the warning. The first thing to do is check your fuel cap. It is important to verify catalytic converter light off prior to determining if a catalytic converter has failed. The catalytic converter is a part of the exhaust system that looks kind of like a muffler, although it's job is very different from that of a muffler. But on the way home from the dealer the light came on. If the catalytic converter is damaged then there's a good chance the entire engine will then need to be replaced. But I still see the little check engine light on the dash. " The status remains "not ready" until the vehicle's computer has had adequate time to review the repaired component. Stop in the shop, call us o. The best way to turn off the check engine light is to fix whatever problem has caused it to come on in the first place. This product became standard equipment in the U. However, if you buy a Bullet Proof EGR cooler you don’t have to purchase an SCT tuner, saving you. Even though an illuminated check engine light isn't a great sign, we want to help you understand if you can still drive your car, for how long, and what will happen if you keep driving with the check engine light on. If u take it out it wont clean the smoke, plus iam pretty sure ur check engine light will go on. You can see the O2 sensor just downstream of the cat in the first photo. The OBD II system will fail the converter, set a P0420 trouble code and turn on the Check Engine light. A catalytic converter is a part of a car's engine that removes poisonous carbon from the engine's emissions. By the way, don't bother trying to fool the inspection station by disconnecting the battery or using any other method to erase the trouble code and turn off the "check engine" light. So after work I came back home and had a bit of fun with the VSC and Traction control off (I didn't check the abs), then I called up the dealership. Continue driving and see if the check engine light turns off. (our cars with pellet flat bed type) removing it. Driving with a misfiring engine could damage your catalytic converter, which is a very expensive part. San Rafael police arrested two Oakland men for catalytic converter theft following a traffic stop Saturday night. The Check Engine Light can come back on within minutes, days, weeks or months. You don't need to use a scanner to reset Audi check engine light as long as the problem was resolved. 2000 Bonneville code p0102 after plugs and lean code fixed. Ford Engine Light Questions And Answers. First, lets talk about the color of the light that has come on. Below are a few things you can do to reset the check engine light. the car is a well taken care of car but the check engine light stays on. Once the ECM sees that the problem is no longer occurring, such as a cylinder misfire or loose gas cap, it will clear the DTC and turn off the check engine light on its own. If your catalytic converter has been stolen, you'll immediately notice a loud sound and altered vehicle performance upon startup. i recently removed both cateletic converters on my 99z71 with the 5. 1997 G rand A m ETS and check engine light on. Details: When I start my car in the morning, after driving. Tyre pressure warning light The tyre pressure warning light will become illuminated when the tyre pressure monitoring system detects a tyres pressure is reduced by 25% or more. The OBD II system will fail the converter, set a P0420 trouble code and turn on the Check Engine light. any of you that hasn't. I stopped put it in park, turned off the car, waited for a few minutes, then turned the car back on, the car was still shaking, then the check engine light came on. bottle of Cataclean is one of the best products you can use to clean your catalytic converter and oxygen sensors. 8) Using the wrong type engine oil not designed for your car can kill your CAT causing the dreaded “check engine” light to come on informing you that your cat has died 9) And the number one reason that CATS die is due to the driver ignoring a BLINKING “check engine” light while they are driving. Corvette: How to Install Headers and Exhaust. Check engine light problem. You can temporarily turn it off by removing the battery cables for a few minutes and them putting them back on, however within 25 miles it will be back on. The catalytic converter, because it cleans up any exhaust pollutants that exit the engine. Loose or broken fuel cap - if your check engine light is lit, check the cap to your gas tank before you do anything else. The P0420 Check Engine Light is triggered by a reduction in catalytic converter efficiency. Ford Focus - How to reset the Engine Management Light - Collos25 You can buy an OBD11 quite cheaply but it will not cure your problem as already said it will just turn the light off which will come straight back on,what makes you think the cat is faulty there are upteen reasons why this light comes on and a cat fault is the last think I would. 6l) in an attempt to gain mileage and horsepower (we - Answered by a verified Ford Mechanic We use cookies to give you the best possible experience on our website. After the dreaded Check Engine light appeared in rather than thinking that they're trying to rip you off. If your car was manufactured after 1996, it will be equipped with an on-board diagnostics system, or OBD-II. Malfunction indicator light (MIL) (check engine light). ­To understand why a catalytic converter fails, you need to know how it works. i got mine for. After the second one, I had 3 of the 4 O2 sensors replaced and then shortly after, the 4th one went bad. Whether you are looking to tow or race, we have what you need to make your truck perform. For more information about how the check engine light operates, why it comes and how to turn it off visit this next page. Check into a catalytic converter test pipe which looks the same outside but has all the guts removed. Power the Jeep Grand Cherokee's electrical system on. While the documentation for some older cars provided instructions on how to check and reset engine warning lights, it's not usually possible now cars have. You should turn on the scan tool yourself, if you do not have a self-starting scanner. Of course, you may also be notified by a instrument cluster indicator light (check engine light), or a sluggishly performing engine, or poor fuel mileage. I haven't had the codes read yet but I was wondering if anyone else has had a similar issue with this after installing this or any other brand of converter. Catalytic Converter Problem ?? for 2011 VW GOLF TDI I took my 2011 VW Golf TDi to the dealer today because of the warning light that indicates a malfunction/problem with the catalytic converter. If your car has both red and yellow lights, and it's the red one that's on, it's a more serious problem. Recently I have removed honey combs in two of the catalyst, now the check engine light is on, I just want to ask if I remove oxygen sensor will it affect anythin or there is another solution to get rid of check engine light, I had tried resetting it but after few miles it comes on again. A Check Engine Light that comes back on is an indication of a more in-depth. Dodge Ram: How to Reset PCM and Check Engine Light. Not surprisingly, the wires connected to them are also important, as they deliver the spark from the ignition coil. After checking everything else on the list, remove the down pipe/cat and check to see that light shines through brightly. My check engine light came on after i was messing with an aftermarket intake, the car struggles at 3,000 rpm. In those cases, the problem most likely requires immediate attention. One of the most asked questions that I get each day is "my check engine light came on today, what can I do to turn it off". Grand am p0300, p0108, p0335 multiple sensors after timing chain replaced. do I just remove and reinstall a fuse. Some Chevy vehicles include Silverado, Suburban, Cavalier, Trailblazer, Tracker, Tahoe, Cobalt, and more. Feature: 1: The O2 CEL fixture actually incorporates the M18X1. The catalytic converters may soak a few more HP than that. Inorder to pass inspection your car needs to complete a full drive cycle so that all (8) internal monitors have a status of "Ready". Was this helpful? If you unhook the o2 sensor its still going to keep the check light on and set more codes. Catalytic converter light just came on As I was driving home just now the catalytic converter light came on in my 2011 JSW TDI. Remove the exhaust from the rubber hangers. See our lemon odds and nada odds page to see vehicles with no repairs or vehicles with more than three repairs. The jeep runs great, but the check engine light has been on for several years now. The catalytic converter is part of the exhaust system, working to reduce the amount of harmful exhaust gases. Catalytic converter light just came on As I was driving home just now the catalytic converter light came on in my 2011 JSW TDI. I wouldn't unhook the o2 sensors. It is possible to with a properly formulated chemical additive to clean up and remove this coating (both from O2 Sensors and Catalytic Converters) with a service procedure or with a tank additive. Common check engine lights Below is a list of common check-engine lights that can illuminate after the installation of aftermarket parts. If you postpone repairs, you risk additional damage that can cost hundreds or even thousands of. It is the light that we shouldn't ignore. It is illegal to remove a catalytic converter. So, a high level of carbon emission is the obvious consequence of a bad exhaust system. A catalytic converter is an integral part of your car’s emissions control system that is responsible for managing pollution and minimizing you. when the check light came on, I could feel that I had to press really hard for acceleration as I could feel a drag more like as though air is entering the engine rather than fuel. Every time the check engine light comes on, the F-150 stores diagnostic trouble codes in the vehicles computer. 2 Converters generally do not just go bad, usually it is an issue with engine tune (Rich / Lean / or burning oil) to excess that kills them off. Now, the check engine light came back on after replacing the first sensor, so the computer was able to immediately determine that there was a problem. ­To understand why a catalytic converter fails, you need to know how it works. If you find that the light keeps coming on, and goes off again once you tighten the gas cap, then your gas cap is too loose. Once again within the past 6 mos or so, the check engine light came back on again and catalytic converter needed replacement again. ) Running winter fuel in warm weather. But I still see the little check engine light on the dash. To ensure the maximum lifespan of the Oxygen Sensor, it is necessary to perform strict engine maintenance (spark plugs, air filter, et al. If the catalytic converter fails, this is a major repair. 0L / 2005-2008 Mercury Mariner 3. Catalytic Converter. When the catalytic converter's performance begins to suffer, the on-board diagnostic system (OBD2) in your car will let you know by turning on the "Service Engine Soon" light. i "felt" a little more torque at the low end and "seemed" to pass people easier, i would not recomend removing them, it will trigger the check engine light and yes its illegal in all states(i dont have to smog,hehe). Bypassing a catalytic converter will throw a check engine light and mess with the engines air fuel mix, which you may want to get tuned properly. Would like to remove the catalytic converters off my 2005 f150 (4. A check engine light can indicate a broad spectrum of problems with your 2008 Chevrolet Impala. Check Engine Light—There are lots of problems that can cause a check engine light, but many of them are related to your emission control system, which includes that catalytic converter. How do you take the catalytic converter out. Hi, The light wont go off after removing the converters as the O2 sensors will not get correct readings and will immediately trip the light. Is there a way for me to disable the light? I need to get the car smogged (live in california) and this light is causing the car to fail. Caution: Be absolutely certain you remove all the torque converter bolts/nuts or else the converter will hang to the flywheel/flex-plate as you are trying to pull the transmission back away from the engine to lower it to the floor. High-Quality Eastern 41024 Catalytic Converter in-stock and available to buy here in Auto Parts Warehouse. The catalytic converter, 02 sensor, and a/c amplifier. But on the way home from the dealer the light came on. Now there are many other reasons for the check engine light to suddenly turn on. i recently removed both cateletic converters on my 99z71 with the 5. The best thing you can do is be alert for signs of trouble, such as: reduced fuel efficiency, lack of acceleration when you step on the gas pedal, difficulty starting, emissions test failure, or the dreaded "Check Engine" light. 9V6 my cat is gutted and it ran better but the check engine light comes on and u have to reset the comuter there is a thing u can get from summit that will replace the o2 sensor but its not necessary : P 1: Post a reply to this message: Username Registration: Optional. Not surprisingly, the wires connected to them are also important, as they deliver the spark from the ignition coil. i took my HL in after it coming on & going off several times and found out there was a recall. Most of the time the VSC light will come on with check engine and trac off light. Yesterday I had the catalytic converter replaced, and after, the Check Engine light is on as well as a blinking Cruise light. The WRX comes with as many as three cats, and the ECU can be quite particular about what it sniffs downstream of these catalytic devices. All codes are 2 digit numbers. 2 Converters generally do not just go bad, usually it is an issue with engine tune (Rich / Lean / or burning oil) to excess that kills them off. If not, replacement of the catalytic converter may be required. Codes are triggered based on a series of events and those events can vary by manufacturer, year, engine configuration, emissions standards (Federal vs. What the catalytic converter warning light means. Step 1 – Reset your check engine light. i put a classic flowmaster 40 series on her right before removing the cats and she was alot quieter. That's not something that can be "turned off", and it's illegal to remove it. One thing that won't trigger a check engine light: a recent oil change that was done correctly.