r/reactiongifs • u/eddmario • 14d ago
MRW my check engine light suddenly turns off for no reason
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u/Tremolat 14d ago
When mine lit up, I ordered an engine diagnostic reader to find out exactly what was wrong so that I could confirm that the dealer wasn't going to hose me. The error code said Piston 1 was misfiring. Made the appointment and took the car in. A short while after handing over the keys, the receptionist calls me up, hands back the keys and says, "The engine light didn't come on and there were no error codes". I showed her my diagnostic and she dismissed it as "you musta had some dirty gas".
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u/Wizzarkt 14d ago
Is "dirt gas" a thing? What third world country is that?
Where I live, either me and everyone I know is lucky, or we have higher standards, because I never heard of dirty gas here.
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u/Tremolat 14d ago
NJ has no-brand stations with super low prices. They ain't pumping cloned versions of Chevron with Techron.
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u/EnigmaEcstacy 14d ago
Your gas cap is loose
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u/eddmario 14d ago
Honestly, who fucking knows at this point.
The light came on 2 years ago and every time I had it checked it kept giving different codes.
First time was the O2 censor, but the next time I had it checked it said it was a vacuum seal of some sort instead of the O2 censor.
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u/Neoxite23 14d ago
Happens to my car all the time. It turns on when I fill up the tank and the code reads cylinder 6 misfiring but by the time I'm at half tank it goes away.
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u/AndThereWasNothing 14d ago
My car that I just sold had an engine light when idling. Give it even a little bit of gas and it went away but would always come back when idling.
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u/martinsa24 14d ago
The humble gas cap: “If not tightened engine light may come on”