Check engine light stays after mechanic did $400 of work.

Hello, The check engine light can come on for dozens - if not hundreds - of reasons. There is no way to list all of the possible causes, and even if I could - it would be of no assistance. Typically the check engine warning light indicates there are stored diagnostic trouble codes that can assist a technician who is trying to find out what is causing the problem. This vehicle has an older style of trouble code setting which is not as "easy" to figure out as vehicles later than 1996. As a result you will need to find a good technician with experience with older vehicles and proper tooling to figure out what is going on. https://repairpal.com/auto-repair-near-me