95 ssei dtc codes 1361 1321 est line not toggling - 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 12-10-2005, 08:49 PM   #1
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Default 95 ssei dtc codes 1361 1321 est line not toggling

Im about to punt, i have the service manuals for my car, ive went through the charts for each dtc, replaced the pcm and the icm, codes come right back on.ive read that it might be the cas, cpm any advice would be appreciated
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Old 12-10-2005, 11:56 PM   #2
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A jumkyard PCM fixed the 1361 code in my '95 SLE. Don (jr's3800) has had a lot of experience with this. My experience with this FSM diagnostic procedure was not positive. Some background here:

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