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I accidentally didn't tighten my gas cap after refueling and my check engine light came on. I drove it to a nearby Autozone and the code came back that it  was the gas cap. I've been driving the car for the last 3 days and topped off with good premium gas but the light is still on. I contacted a Porsche dealer who advised that it will rest. The question is does anyone know how long it normally takes for the light to disappear? Ty 

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5 hours ago, Stayfocus62 said:

I accidentally didn't tighten my gas cap after refueling and my check engine light came on. I drove it to a nearby Autozone and the code came back that it  was the gas cap. I've been driving the car for the last 3 days and topped off with good premium gas but the light is still on. I contacted a Porsche dealer who advised that it will rest. The question is does anyone know how long it normally takes for the light to disappear? Ty 

Welcome to RennTech :welcomeani:

As the code is emissions related, it A may take serveral drive cycles to reset, assuming the cap is OK.

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