Quote:
Originally Posted by Alchemy
Well hopefully thats it. What really confuses me is the fact that it was on for so long then went off. I was almost on empty when I gassed it up yesterday and the light went off today which makes it seem like it could be a fuel issue. But, I filled it up plenty of times when the light was on last fall and it never went off then.
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The light goes off when it hasn't seen a misfire for a given number of cycles and time. If they continue to occur sporadically then the code stays active.
It can also be caused by the primary O2 sensors giving bad feedback data, but this mainly occurs in high mileage vehicles.