Please help With 92 bonneville - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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 10-31-2007, 09:28 AM   #11
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You can check the codes yourself using the procedure in Techinfo.

Your car has no EGR.

Ignore code 58 when you test for codes. It'* a known bug in the 92 PCM'* and means nothing.

MAF sensor and TB/IAC cleaning is also in Techinfo. You said your fuel pressure was good, but you never stated WHAT the pressure was. We need that number.

What brand and type of spark plugs do you have? What brand of wires? What are your ignition coil resistances (that'* in Techinfo also).

Techinfo link is at the top of the page.
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Old 11-04-2007, 06:48 PM   #12
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To help, if you still have a question about it, if your engine looks like this, you DO NOT have an EGR valve.

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