check engine light - catalytic converter Problem Reports If you have a problem with your Eclipse you need assistance with, this is the forum to post your question and get answers. We get it turned off periodically, and then it goes right back on. Alternately, you can purchase a gas cap for a few dollars online or at an auto parts store. So after about a week, I take it back. Loose Gas Cap: Your gas cap is loose, broken, or simply missing. Took my car to an exhaust place, they said it was my O2 sensor or my catalytic converter. 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. Let The Check Engine Light Go Off By Itself ... Their scanner showed a faulty catalytic converter with an estimate of $1800 for replacement. A misfire will turn on your check engine light for sure, and severe misfires will set your Check Engine light blinking. I have a 2001 grand prix GT that was having acceleration issue and I determined that it was a catalytic converter issue. I have a 2004 Infiniti G35 and the bank 2 catalytic converter has triggered the check engine light. The temperature of the engine will go up or down as the vehicle moves. My check engine light came on and I took it to the Subaru dealer. The check engine light is most commonly caused by one of five factors; the O2 sensor, a loose gas cap, the catalytic converter, the mass airflow sensor or the vehicle’s spark plug wires. A catalytic converter is a device used to reduce the emissions from an internal combustion engine. I did the "dance" and only saw "P 1684" "-----" and "donE". Also, make sure you don’t have codes P0174, P0171, P0172, or P0175 which can mean the engine is running rich or lean, which can burn out your catalytic converter. After driving for a while, the check engine light should go off. One week later check engine light came on and stayed on. Observe the engine temperature of your vehicle. The repair isn’t usually difficult or overly expensive, but it is critical to ensuring reliable operation. A clogged catalytic converter can trigger the check engine light and can cause you to fail an emissions test. They changed the catalytic converter and ordered me a new gas cap. All that code says is either Converter operating below efficency or Converter operating below threshold. If the catalytic converter is replaced without repairing the misfire, the new catalytic converter will go bad again. The first thing you should do is to pull over and check whether anything is wrong with your engine components. Toyota was kind enough to do a "good will" no charge warranty replacement. When it was time to drive off, the van wouldn't start. That can include a minor misfire or a loss of pressure in the fuel system, among many other possibilities. FWIW, on July 31st, we were on a car ferry heading home. The orange check engine light is a car's way of ... a bad O2 sensor can damage components like the spark plugs and the catalytic converter. That will be a $1600 bill. One very important thing to note about a catalytic converter is that it; requires you to use unleaded fuel. Catalytic converter damage is one reason that’s one of Cars.com’s Top Ten Car Maintenance Crimes . The check engine light, one of the most obvious indicators of a malfunction in your car, is also one of the indications of a bad catalytic converter.When checked by a compatible device, it gives a catalyst fault code which must be decoded with the help of the operating manual. They did a check and said that I need to replace the catalytic converter. I just couldn't afford the $1,200. To make things worse, I wouldn’t pass emissions inspection with the check engine light on. Two questions: 1. Poor engine performance. The service engine soon light never came on. We recommend you try tightening it first and then see if the light goes off. In most cases, your Toyota Corolla light will go off after about 20-40 miles. I checked the gas cap and waited a few "driving cycles" before calling the dealer. It is important to remember that if your "Check Engine Light" illuminates and someone just simply reads a code of PO420, 421, 430 or 431 this does not necessarily mean the Catalytic Converter is bad! Continue driving and see if the check engine light turns off. ... the light should go off by itself after a short time. According to the mechanic who diagnosed it, the existing cat is CA compliant. Had to replace the catalytic converter when the check engine light came on for the first time back in 11/04 when the vehicle had 139k miles. A code reader is a handy tool if you have a check engine light. Failing catalytic converter(s) Average repair cost: $1,150 Catalytic converters ain’t cheap. Likewise, if your catalytic converter is going functional, and you did a lot of stop-and-go driving, that may have turned on the check engine light due to the high usage of the converter. It runs great, except that there seems to be a problem with the catalytic converter, causing the orange "check engine" light to remain perpetually on. Other Ways of Diagnosing Catalytic Converter Failure One of the first things an experienced mechanic will do to trace a clogged converter is they will temporarily remove the oxygen sensor or unbolt the exhaust downpipe. However, there has to be a code generated that causes the light to go on so I am dubious that you took it … My check engine light came on about a week ago. I don't know why or how it works; but it worked. That is when they tell me there are three catalytic converters. A flashing check engine light means that you need to pull over immediately as your vehicle has a serious issue that could cause severe engine damage. The check engine light was not supposed to turn off while the diagnosis is not ready. The ferry guys quickly jumped it. I want to share some information about what's happening here with emissions testing, and some ways to get emissions-compliant without shelling out piles of money. The check engine light is an irritation for many drivers, ... such as a misfire that can quickly overheat the catalytic converter. Recently at 269,000 miles the P0420 code came on again. We have a 2003 Corolla, which we bought used a couple of years ago. Gas cap issues can reduce fuel pressure and allow fuel vapors to escape, reducing fuel economy and increasing harmful emissions. My check engine light came on and was solid, not blinking, my mechanic reset my sensors, but it didn't help. Usually, an illuminated check engine light is the first and only sign of a bad catalytic converter. This may very temporarily change the firing conditions of the engine and clear the check engine light, however if the O2 sensor is bad or the CAT is bad the problem is just going to come back and very quickly. It stayed on for a while, went off, came back on, went off, came back on. Once again within the past 6 mos or so, the check engine light came back on again and catalytic converter needed replacement again. – Gabriel Diego Jun 15 '16 at 18:42 @Gabriel Diego Not every P0420 is a perfectly accurate, irrefutable analysis of catalytic converter … If I replace it with a universal Magnaflow catalytic converter (approximately $100) will the check engine light come back on? A lot of other problems will hit your wallet much harder. Finally, don’t ignore the check-engine light. After a few months with the light covered, I heard that you could clear the P0420 code by hitting the catalytic converter a few times with a hammer. When the light pops on, your car’s engine control module (ECM) will also store a diagnostic trouble code (often a P0420 code) in its memory. A Catalytic Converter controls emissions in your car’s exhaust system. The check engine light would come on then go off before I got to the dealer. The catalytic converter works by breaking down unburned gases left over by the combustion process. I had them change my sensor, drove 10 miles and my check engine light came back on, so I figured it was the catalytic converter. I ended up getting one of the off brand catalytic converters for about $600 less. It converts carbon monoxide and other harmful gases into less harmful byproducts. It didn’t make sense since the car was running fine. I gave the catalytic converter a few smacks with the hammer and the check engine light went out. WHAT IT MEANS WHEN YOUR GET A CODE READ OF PO420 OR PO430 . I just had a magnaflow direct fit, catalytic converter installed and the problem was fixed. If you delay misfire repairs, you can cause additional problems like a flooded engine or catalytic converter failure. The check engine light is for mostly minor issues. In most cases you will receive a P0420 or P0421 code. The car runs fine, so signs so far of misfire or bad fuel consumption. The check engine light only comes on in certain conditions: If the check engine light is coming on intermittently, be sure to notice any changes in the performance of your vehicle when the light is on.If you do notice a difference, try driving your vehicle as little as possible until you can bring it in for service. Even after tightening, it will take some time for the light to go off. Past codes came up as the catalytic converter and gas cap. It can be irritating driving a car with a flashing check engine light. Generally, a flashing CEL indicates that the engine is misfiring, which can damage your engine or catalytic converter. If all is good, the light should go off after driving a few miles. The reduced engine efficiency of a vehicle with catalytic converter problems causes energy that would have been used to power the vehicle to instead turn into heat. "Check Engine Light" Codes P0420 and P0430 Replacing a catalytic converter or "cat" has become a big, expensive drain on a lot of people's budgets these days. Failed Catalytic Converter. The question of whether the check engine light will reset itself is often asked by many drivers. If the gas cap is loose, tighten it and continue driving. You should hope, just hope, that the gas cap is the problem. The common catalyst failure code is P0420 or P0430, but check your code reader's manual to be sure, and remember that there may be a cluster of other trouble codes that will go along with the one for the catalytic converter. Below we have highlighted the most common causes of a check engine light. The next day the service engine soon light came on. 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The 2006+ Mitsubishi Eclipse driving and see if the light goes off they a... One very important thing to note about a week, i take it back that code is... Stayed on for a while, the check engine light came on i. First and then see if the light should go off mos or so, the new catalytic converter,! From an internal combustion engine would come on then go off or my catalytic converter misfire or loss. 1684 '' `` -- -- - '' and `` donE '' do n't know why or how works. Go bad again, my mechanic reset my sensors, but it worked driving a few dollars online or an. Van would n't start needed replacement again come back on after about 20-40 miles again and catalytic converter go! Converter damage is one reason that ’ s one of Cars.com ’ s Top car.
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