1984 Pontiac Bonneville Checking and/or resetting codes

1984 PONTIAC BONNEVILLE
98,000 MILES • 6 CYL • 2WD • AUTOMATIC
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MARIONSCLAN
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I need to find out how to read codes on an 84 Pontiac Bonneville, V6 with a 3.6L engine (according to the sticker on the car itself). It seems that most places don't read them on a car that old, but I know it is possible. Also, I have a constant oil light on and since I just bought it I wanted to reset the codes to see if the problem had been fixed or if it's a real problem or just a faulty light issue.

Thank you,
Marion
Aug 28, 2010 at 1:46 AM
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RASMATAZ
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Hi marionsclan, Welcome to 2carpros and TY for the donation Application Connector Location Bonneville (RWD), Caballero, Cutlass, El Camino, Grand Prix, Malibu, Monte Carlo, & Regal 1983-84 Diagnostic (ALDL) connector is under left side of dash


https://www.2carpros.com/forum/automotive_pictures/12900_GM_ALCL_47.jpg

About the oil light,do you hear any type of engine knocking noises? if not -Check the oil pressure with a mechanical gauge,if normal replace the oil pressure switch could also be the gauge/wiring problem. If abnormal could mean oil pump and engine bearing.
Aug 28, 2010 at 5:18 AM