Hi,
I have had my check engine light on for some weeks now. I have been unable to find any problem yet but there is one thing I would like to know. A couple of weeks before, I had the same problem. I replaced the air filter since it was quite dirty and the check engine light went off. What I would like to know is, does fixing the problem reset the ECM code or is the code retained until the code is reset manually?
thanks
Pete