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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.

help!!! P0171 never ending battle

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Old Apr 28, 2008 | 05:58 PM
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Technical Ted
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Did you check what the fuel trims are?

How many miles are on the car & do you know if the lower intake gaskets have been changed?
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