How do you reset the check engine light on a 1999 Pontiac Firebird?
There is no reset for the check engine light. The light is an emissions system malfunction indicator. It is necessary to diagnose and repair the cause. There are aftermarket code readers (an paper clips work too) which will lead you to the area of the problem. After that experience and a good emissions system book is needed to find the real cause. You cannot �just replace� the part the code represents, other emissions systems will cause some codes to set. Skill and knowledge come in play. Take it to a good shop. Disconnect the battery overnight. That will reset the entire computer. It will also reset the fuel learns, takes 100-300 miles to relearn, and will lock the Delco stereo (somewhat permanent if you do not know the code - read the owners manual). If the original condition still exists it will set the code again, otherwise, it will be gone!
Why is it when you press the acceleration pedal on a 1998 Pontiac firebird 3.8 strats shaking and rattles?
What would cause an engine surge and check engine light on a 1985 Pontiac Grand Am and how do you repair it?
The computer has detected a problem that effects the emissions controls. After having the computer scanned and the problem corrected, they will reset the light. I've had problems with the check engine light on my 98 Bonneville. You have to make sure that the gas cap is put on tightly with a few clicks. If it is loose, that could trigger the 'check engine light' to come on. Hope this helps.