is not running right like before
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1991 BMW 525i Question: check engine light
Answer #1Bret Bodas from RepairPal Test Shop, February 22, 2010, 09:53Master
When the check engine light comes on a diagnostic code(s) will be stored in the engine control module, and this code(s) will need to be retrieved to know where to start diagnosing this problem. This will need to go to a shop if you are not familiar with diagnosing and repairing fuel injection/ignition issues.
Answer #2Visitor, June 08, 2010, 15:05
it could be a variety of issues...the most likely one could be that it is time to have the spark plugs cahnged and the car is due for a stage I tune up.