Having problems with your Lexus ES 330 ?

How to reset check engine light after replacing gas cap when thats the problem

Posted / edited by AnonymousUser on : 15-01-2018

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Do you need to reset the check engine light after replacing gas cap for the check engine light to go away? I replaced the gas cap but the light still on. Is there any way to try resetting the check engine light?


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How to reset check engine light after replacing gas cap when thats the problem


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Okay this may be kinda long so bear with me: initially my check engine light came on and when I took my car in for inspection they discovered it was a faulty gas cap (it was cracked on the inside) and gave me a new one that fixed the problem immediately. Since I like having a locking gas cap I bought a new one and replaced the gas cap Goodyear gave me with that one. About a week later the check engine light came on again. I took the gas cap on and off several times and the light remained on. Th


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The problem started with the gas cap. The engine would not go above 1200 rpm until you shut off the car tightened the cap and then would be fine, although the check engine light would stay on for a short time after tightening the cap. Then it started being more often. I replaced the gas cap and it ran fine (with no check engine) for about a week. Then the same symptoms returned only worse. The check engine does not go off, the car noticably misses at times and the stops to tighten the gas c


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Flashing cruise control light, flashing brake light, check engine light all came on yesterday. The gas cap was off and I replaced it when the lights came on. I think that should solve the problem but the lights haven't turned off yet is there a way to reset them?


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I have mercedes ml 430. check engine came on at the same time fuel warning light was blinking. took the car to authorized mechanic, they checked and found po455ctrl system grass leak. they reset the check engine light and replaced fuel tank cap. second day the same problem came back check engine light started to blinck. checked for the leaks and did not find any problems. mechanic wants to take out the tank for further investigation.


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My engine check light is always on. I took it to Toyota, and they said I needed a new Oxygen sensor, which is an expensive replacement. I am an acquaintance with one of the mechanics there, and he said that it was just a screw-on-gas-cap problem. He said to turn it so that it clicks about five to 10 times, and within a while, the light will go out. That may be, but, the engine check light is an important indicator for other things. Any ideas on gas-cap idea?


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My service engine soon light was on. I took the vehicle to a mechanic and the code came back po422. A smoke check was performed and they said it had a leak in the filler neck and the entire gas tank needed to be replaced. So the dealer replaced the tank and now I'm getting a loose gas cap message light on the dash. Since the dealer did not replace the cap when replacing the tank is that what the problem is, or was it not the gas tank issue at all?


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2004 GMC Envoy, My service engine soon light came on. I took the vehicle to a mechanic and the code came back po422. A smoke check was performed and they said it had a leak in the filler neck and the entire gas tank needed to be replaced. So the dealer replaced the tank and now I'm getting a loose gas cap message light on the dash. Since the dealer did not replace the cap when replacing the tank is that what the problem is, or was it not the gas tank issue at all?


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The check engine light came on found out it was the gas cap. I replaced the gas cap now how do I get it to reset itself to get the check engine light to go off


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Information about the p0420 codehttp://www.obd-codes.com/p0420 ... 2002 Toyota Camry

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2005 4RUNNER SR5 V6 63,000 MILES 4X4. CHECK ENGINE LIGHT STAYS ON AFTER STARTING ENGINE. CHECKED WITH CODE READER, IT SHOWED 0456, EVAPORATIVE EMISSION CONTROL SYSTEM LEAK DETECTED (VERY SMALL LEAK). AFTER RESET, LIGHT STAYS OFF FOR 4-5 DAYS,THEN STAYS ON AGAIN AFTER STARTING ENGINE. REPLACED GAS CAP, NO HELP. THIS HAS GONE ON FOR 5 WEEKS.LIGHT NEVER COMES ON WHEN DRIVING,ONLY STAYS ON AFTER STARTING ENGINE NEAL


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OK try this one on for size I have a 2006 hhr with 198000 miles. About a year ago the check engine light came on. The car started and ran fine so we didnt take it in. Then a check fuel cap came up and it got hard to start after you remove the gas cap . We replaced the cap with an after market and factory cap and same problem. I had a mechanic hook it to diagnostic and a code saying large evap leak. We found a valve down behind tank had got water in and froze and broke. Replaced that and same thi


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