I've been having a reoccuring problem with my CEL.
The dealer WILL NOT tell me what the code is, I have fought with them and they will not tell me. Also, the only auto-place within about 50 miles of me is a pep-boys, and I asked them if they had a way to check the code on an CEL, and the guy was like "uhm, you can get a tune up" so thats not an option.
Here are some of the symptoms, I'm looking for some of the things I should do to see if I can make it go away.
1. It seems to happen only when I drive short distances. I reset the check engine light with battery removal, drove for about 300 miles (one trip to PA) no CEL. I came home, filled the tank, clicked the cap down all the way, drive about 20 miles a day in short trips, half tank of gas, the light comes on.
2. The only mod on the car WAS a K&N filter, but I took that out the other day to see if that was the problem. Is it possible the thing was too oily (from factory) and it messed up the MAF?
3. car gets proper gas, cap is always clicked down. I even bought a new gas cap in case the other one was faulty.
All I've EVER heard from my dealer is that it's an EVAP code. They refuse to fix it, telling me I leave the gas cap off
and I'm wasting their time.