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1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 12-31-1969, 08:00 PM   #1
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My check engine light is on, and has been on since I bought the car, it ussually runs fine, but every once in a while it lacks in power, I read the owners manual and it sounds like that light means that there is something wrong with the emmisions rather than the engine, my thought is the O2 sensor, any Ideas?
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Old 12-31-1969, 08:00 PM   #2
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your best bet is to you have it scanned. I had my system scanned about a month ago. All mechanics have a scanner, but hopefully you can find a buddy around here or in clubgp.com that has one who is willing to help you out. It maybe something simple... but you never know.


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Old 08-26-2002, 09:57 PM   #3
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I found out that sometimes if you don't tighten the gas cap enough it will cause the check engine light to come on, try tightening it and disconnect the battery for a couple hours to erase the codes, if it comes up again, then you know it is something else.
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