Question about 1991 Oldsmobile 88
Check all of the ground leads in your engine bay. I had the same problem on my 240sx. A ground lead that connected to the valve cover was loose. It just happened to be the ground for the ecu.
Posted on Jun 25, 2009
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Posted on Jan 02, 2017
The engine light comes on mostly when you have bad gas tank cup,or you don't tight enough the gasoline.Go to any auto-zone and request the obd scanner,at no charge just leave your driver license or credit card,connect the scanner follow the instructions.They will check up and the check engine light will come off in the next 3 to 5 days.
Thank you !!
Posted on Jul 06, 2010
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