Service Engine Soon - 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 07-27-2006, 10:33 PM   #11
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The TPS wiring connector has been replaced by someone before no telling when and I'm afraid the wires may not be in the right order. The chasis electrical system diagram I have shows BLK, DK Blue, Gray. Can anyone confirm this or am I looking at it upside down or something?
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Old 07-28-2006, 06:19 PM   #12
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Well turns out my TPS was covered in antifreeze from the Thermostat housing. Replaced it and the gasket. Put the new TPS on and the light goes out instantly. Running great now. I found an old post about the wiring harness. Going to look up that scan tool on ebay now. Thanks for all the help.
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