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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.

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Old 01-13-2004, 04:36 PM   #11
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The PCM should pick up the fuel curves in time. I might consider not even running the afc for now, or not that high. Let the PCM pick up what it can, then tune the controller for what'* left.
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Old 01-13-2004, 04:42 PM   #12
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thanks for info , I never knew it would be so hard to get the right computer chip to run.
Just for referance the n/a chip makes it sound like it has a massive cam in it!
the exhaust is alot quieter now.
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Old 01-13-2004, 09:12 PM   #13
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New boost (well differant one) did not fix problem. I noticed with factory chip it idles higher so the vaccum is higher app 18-20lbs, wiht axdk(na chip) it idles around 6-700 with vaccum of 10lbs.
when I install the correct chip and it trys to idle down it gets very lean and will not idle down , but as it trys to idle down I notice the vaccum tries to drop lower aswell......just cant drop low enough till it is too lean to run.
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