2006CobaltSS12

My check engine light keeps coming on but after I get gas the light goes off and then will come back on a couple days later. I'm thinking it may be the seal for the gas cap or the gas cap itself causing sensor to trigger but I may be wrong. I had it scanned at Advanced just as a quickie on my way to work and it said "Manufacture Air/Fuel Module." Which basically means I would have to take it to the Stealership to have them run the code and see what the actual problem is. I don't want to take it to them just for the simple fact most of them will give you a run for your wallet. Any ideas are appreciated.

blaze1

get a new gas cap... might not fix the problem but if it does your only out about 10 bucks

2006CobaltSS12

yeah, thanks. I ordered another one today, so we will find out in a day or 2.

bobbyhill31286

iTrader: (2)

are u shutting the car off while getting gas??? (dont wanna sound like a smartass) if the gas cap dont take care of it ( which it prolly will) ya might have to take it in.

2006CobaltSS12

yes, I always shut my car off while getting gas.

scottie

Theres no reason for the CEL to go off after you get gas if its the gas cap. fuel tank pressure sensor, or purge valve?