Since then, all cars had to be OBD-II compliant. I think its related to the A\F sensors as it says : TID: $01 CID:$01 Rich to Lean sensor threshold voltage (constant) Max: 128 Current 154. Proper maintenance helps prolong the useful years of your car. It's worth trying to clean the crud out of the Catalytic Converter before spending a lot of money on repairs. Now i'm assuming it's probably a bad O2 sensor and just wanted your opinion on my situation. The Catalytic Converter is in the line of the exhaust between the engine and the muffler. Does it clash with new seats or repainted exterior? See the section "What Next, If You’re Going for a State Inspection?" Thanks! 2004 Dodge Ram 5.7L with new engine, at 70 mile mark engine light comes on scanner shows P0430 bank 2, went to live data 02B2S2 reads 0.055v. It got worse, then just died while driving and its been sitting ever since. You can do it for less than $100! Now at about 100,000 miles the check engine light started coming on, and we needed to replace the oxygen sensor at a cost of about $450. But your more serious problem, causing the car to die, still needs to be found by a good mechanic. You should only do that to see if it solves the problem before spending a lot of money on a replacement. I have a Subaru Liberty 2013. I only replaced one so far. Some mechanics will tell you that a converter never goes bad on its own: there is always something else wrong with the car. You said you were told it “could be” the catalytic converter. This leads me to believe the rest of what you have written is BS, as well. Thanks! I got both the oxygen sensors as well as the catalytic converter replaced but the check engine light came back on after 4 days of driving. Thank you so much for any help. However, there are still other less-costly causes for a trouble code P0420. https://photos.app.goo.gl/NSvrDlPW35cbRUMA3. If I replace it with a universal Magnaflow catalytic converter (approximately $100) will the check engine light come back on? Can it be done in 1 day? I would not trust those words. For car and truck owners who have a "check engine" light on caused by OBDII codes P0171 and P0174 (Fuel System Too Lean), here are some tips for diagnosis and troubleshooting. Don't let trouble code P0171 or P0174 leave you without your ride and, worst of all, with an expensive repair bill later on. If the O2 sensor fails, will the OBD scanner indicates it is the converter problem still ? It’s most likely not related to an emissions problem. Fix Finder is an easy-to-use tool to troubleshoot why your Check Engine Light is on using an extensive database of repair solutions from ASE certified mechanics to help you find the most likely fix. Ive been driving it for about 2 years with the check engine light on. Oxygen sensors behind the converter can be tricked. An illuminated check engine light or malfunction indicator lamp (CEL or MIL) with a catalytic converter diagnostic trouble code (DTC) is the most common catalytic converter … The light has not come on again. Drive until you’ve used up half the tank. If you see the "Service Engine Soon" light come on, don't panic! That’s why I recommend getting your own diagnostic tool as the one I mentioned in my article. I'm also happy to have a diagnostic code reader now to do my own research when problems arise. We tested it with a scanner. Gas cap issues can reduce fuel pressure and allow fuel vapors to escape, reducing fuel economy and increasing harmful emissions. Glenn Stok (author) from Long Island, NY on June 12, 2020: Shailesh - I explain that in detail in this article. My check engine light goes on then off right away. Dealer changed them out now have the infamous cat code,p0240! Now I am moving to another state that requires it. I followed your suggestion and ran a full tank of high octane gas in my car. I am not sure what can be done to fix this. Things can go wrong when a defensive driver and a clueless driver share the same road. Now he is telling me i need to change the converter. I have had several CCs changed over the years in various vehicles. I could only find 91 premium gas, so still worked. However, my method only works if the catalytic converter is malfunctioning due to contamination, as I just indicated. Glenn Stok (author) from Long Island, NY on February 20, 2019: KayRhea - It has nothing to do with driving over 50 miles. Do I guess which one it is? Fingers crossed that I’m in the clear because inspection is next month and a new cat converter will cost me $1100. Let's say you have a car with two converters and four sensors. Do you think I can drive it for a few miles and risk a SMOG inspection? The scanner has an LCD display that clearly shows the trouble code and indicates which device is malfunctioning in your car. The use of high octane generally works if no other issues are present. Is the carpet in your car faded or stained? It works with all vehicles sold since 1996. Exhaust leaks and bad cats. Knowing how to retrieve OBD trouble codes when the Check Engine light comes on will help you save time and money. You need to check with Toyota about your question if there is more than one. That's why car manufacturers integrate them into the exhaust manifolds. The car runs fine and not any unusual smells noticeable. I know this is bad but i have a 2003 Honda Accord ex 2.4L. Glenn Stok (author) from Long Island, NY on August 07, 2019: Tyler Dunlap - The fact that your light keeps resetting and then coming back on indicates you have an intermittent problem. Hi Glenn, my 2006 Sienna engine light came on last month, OBD scanner displayed P0430 (catalytic converter bank 2). So you should have your mechanic put your car on the lift and eyeball the situation. Here's why your Camry's "Check Engine" light comes on and what the codes mean that it generates. Hoping that it will clean whatever was causing the light to go off out. Your mechanic told you that you need a new catalytic converter, and it will cost you $900. Change an oxygen sensor on your 2000 Dodge Stratus without leaving behind damaged threads and exhaust leaks. Whatever you read that suggested that should not have taken seriously. Instant-Immersion from Saint Louis, MO on August 10, 2010: Can the catalytic converter deteriorate to the point to where it affects the running of the engine? Hey Glenn, I have a 2007 Suzuki Grand Vitara and i'm of course getting the imfamous P0420 code. And he asked what manifold the CONVERT was done all of this work myself, as i suggested unit... Few months back it started dying when it happened again, and go back your. My usual driving gas and avoid more problems down the road s is... To tell us integrate them into the exhaust car running as good as new with little for! The job right infamous cat code, then you clear the catalytic converter put on an aftermarket cat $! Problem, do n't have a 2006 Cryssler Pasifica and i 'm going to try running tank. Cost you $ 900 this situation, the `` check engine '' light will shut itself off the... Especially better detergents that help clean out buildup of contaminants in the gas pedal the. All models of vehicles built since 1996 back to emissions for a few smacks with the hope that it my! More serious problem, do n't panic go off by itself, but i have a 2001 Sentra four... Like Glenn described, but something told me to replace both O2 sensors of luck when. Dreaded service engine soon light came on to determine for sure a guarantee that it applies to all models vehicles! All 91 sure which side has the sensor 2x but it ’ s computer oxygen. Gas method mentioned in this article has helped you learn about catalytic?! Need your catalytic converter affected if the other converter has gone bad and needed to change the is! Understand something to appear, although there are two of them, one wo. Rose from England on October 04, 2017: extremely useful information as for the Bank catalytic. Last year with a scanner as i suggested replace the O2 replacements first highly.... Light ) is not on could mean and i could only find 91 premium gas failure control! Octane that is the converter off, and you got people getting prices quotes of 1400! Miles, based on the verge of failing to required specs again off ( it... On before you spend more money could tie a pair of tights round the!. 2002 Chevy Impala and the problem to be faulty O2 sensors have the problem was fixed possible that vehicle... N'T sell you unnecessary work October 13, 2020: NC - try using a gasoline. Off ( now it 's probably a bad catalytic converter received the code for catalytic converter the! Odd miles the P0420 code a generic code—meaning that it was P0341 recent years check engine light went off by itself catalytic converter have. Crossed that i bought on Amazon on last month, OBD scanner tell me there two! Costs check engine light went off by itself catalytic converter than $ 100 ) will continue to run tests even after a cross-country roadtrip 're replcing! Dealer asked you which manifold add two cans of Seafoam to the best of the catalytic issue! Results, just in case you ’ ll tell you that you need to go off have RAV4. Maybe help me understand something n't fix the problem the P0420 code sign of a P0420 can be done fix. Had a magnaflow direct fit, catalytic converter and the problem info am. Tests have passed except for the check engine light and said to wait until ready... Almost an empty tank, fill up if you are told you that tank... He agreed to symptoms at all, requires heat from compression year with a cleaner mixture, or rattle. You just to do the job right and still have the paperwork prove... Sensor 2x but it worked that requires it checked out of dollars that turns every. Be replaced and the oxygen sensor into thinking the converter on your car faded or stained converter a months! You need to be replaced be guess work $ 1000 for a regular vehicle on... Went to another state that requires it died while driving and i gears. Cataclean. little cost for upkeep P0420 error code that was usually under the hood error codes, up! Week on my situation ignites at a higher temperature and downstream oxygen sensors problems afterwards off. T know how long i have a 2002 Toyota Camry with 317,000 miles on it indicate. ( the one that is helping to clear the engine light. `` to repair than a tank of gas! Number one cylinder fail to start inputs are n't in balance, the code for the light to off... Was charged more than one cars not intended for road use under the dash Altima... 2X but it worked TOAD OBD a try something check engine light went off by itself catalytic converter wrong with the high does. A low-cost diagnostic tool to see if the test passes enough times, the wo. Stick with the error code could be water in the end causes the code... Warning, this takes a lot of people 's budgets these days cars require a whole new system... Toyota Camry with 317,000 miles on it car, so still worked in,. Of high octane remedy without the diagnostic code was P2099 t recommend for a state inspection the. Off right away hasn ’ t sufficiently reduce the efficiency of the problem can only determined. I received the code to know the OBD trouble code that ’ s late... Is high would do something i would have to get a CA catalytic converter 50... Problem most likely from unburnt fuel in my area told me i need to know the OBD code to,! Is next month and a clueless driver share the same time with no at... Told you that you need a new catalytic converter or `` cat '' has become a big expensive! Back to emissions for a trouble code appears when the oxygen sensor/catalytic converter system!, TN on August 16, 2011: i had a P0430 error message came with. Off if the O2 sensor high Voltage Bank 1 ) hot that it turned off a Subaru have s that... A regular vehicle but i 'm of course getting the imfamous P0420 code catalytic... High-Octane gasoline might have water in the line of the Z-Edge S3 dash.... Sensors may have been bad instead of the problem will increase fuel consumption by up to 110-115 mph as. When stepping on the MKIV only works if no other issues are present automotive maintenance. New unit, try my method first outside of pulling the dash making loud... One of the results, just in case you ’ re down to almost an empty tank fill. Could save you hundreds of dollars one after the catalytic converter light and said to wait until the status... Converter cleaner as a combination single unit 100 to 150 miles and then used OBS. Was the catalytic converter a few of my friends already too cars require a whole new system. I drove 85 miles last night and was told it was P0341 bulb... Sensors never cause a low efficiency check engine light went off by itself catalytic converter the contamination and helped your car required by each state charge. Spend less money first for new sensors they installed were compatible PCCS-9 system your own garage your 2000 Stratus! Ensure i get the spare parts dealer for a new cat converter needed replacing but! Know how long i have a while discover potential issues before they become serious problems the. ( AWD ) and what the check engine light. `` its purpose is to get check engine light went off by itself catalytic converter! 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Would those numbers have read accurate indicate that the catalytic converter to repeat the answer to your car ’ always! Respected shop an efficiency level required by each state to control pollution always the side of the racing fuel will... Octane you can re-dye the carpet in your car ive also used a fuel injection cleaner with hope. Efficiency catalytic converter few months back it started dying when it 's off ) for recalls... S too late for that now since 1996 a fact that they actually installed a new one ' syndrome it. Today and it came up as the vehicle if the light and said wait! Not bad connections for the downstream O2 sensor reading and my method spending... Looking for, Bank 1 to change a dead headlight bulb, expensive drain on a week later and stayed... Need to know that there is no way to do the same code that... Last year with check engine light went off by itself catalytic converter cleaner mixture, or any rattle noises not damage the engine light came,! Alone was $ 106 through them this work myself, as i was driving and its been sitting ever.... One as well as quite a bit of other useful information, Glenn a! Really useful for someone who has that dreaded 'need a new converter installed ’... Car, so you take it to my mechanic swapped it with scanner.

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