If engine light came on do to leaving gas cap off will this reset itself
If it does not go out, it will need to be reset by an analyzer...
It will go out just give it time
Usually resets after driving 50 miles. If not you will need a scan tool to reset it.
It will go out once the computer has run the diagnostics on the EVAP system. For that to happen the gas tank must be between 3/4 and 1/4 full. No more and no less. Depending on how much you drive it could take up to a week. HTH. -Jim
start and stop the engine two or three times and it may go out
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