I was driving to school yesterday and as I was on my way the heads up display started beeping and read "check gas gap." I scratched my head and cleared the message because i could just check it once I got to school. Right before I reached school, the check engine light comes on. Im assuming these two things are related but not sure what the problem is because the gas cap was fine. Has anyone experienced this before? Anything helps guys. Thanks.

 

There is a gasket iirc correctly for the gas cap, so even though your cap is tight, you still may need a new gas cap. i'll try and find the thread

 

alright cool sounds great

 

cel's blow. same thing happened to me in my pickup i was throwing an evap code because of a bad gas cap, hasnt happened on my cobalt yet...

 

had to get a new gas cap a month after i bought the car

 

well, looks like i need to start looking for a gas cap!