Mechanics

SERVICE ENGINE SOON

1986 Oldsmobile 442

Computer problem
1986 Oldsmobile 442 V8 Two Wheel Drive Automatic 65550 miles

What does Service Engine Soon mean and how do I repair it? I have alreaady replaced the O2 sensor on the right side exhaust system.
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Frank1949
August 19, 2009.



It means you have a problem within the engine management system-pull the code/s by jumping A to B on the DLC and read the flashes


http://www.2carpros.com/forum/automotive_pictures/12900_GM_ALCL_40.jpg


Rasmataz
Aug 19, 2009.