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.

Bad Idle

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Old 10-06-2004, 01:58 PM
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Well I cleaned the IAC and put a new EGR value Gasket on and sitll have a rough idle it got a bite better but still a little rough what else does anybody think could be the problem
Old 10-06-2004, 02:18 PM
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I think at this point we really need to get a scantool on your car. And have you done the water mist trick at night to find potential plug wire shorts? Have you measured the resistance of each plug wire?
Old 10-06-2004, 02:42 PM
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ya I probably need a scan tool on it but i just spent a lot of money on it and don't have the money to take in so. What is that water mist trick and no I haven't check resistance they are new plug like 2 weeks old
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