LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Symptoms after cam swap...

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Old 08-18-2009, 09:42 AM
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Every damned time I unplug my PCM my idle is whacked for about a weeks worth of start cycles. When stopping it will dip to about 500rpm and then jump back up to its set idle. It's been this way since I put headers and 58mm TB on 12 years ago. Doesn't matter if it's a different engine, tune or IAC motor. Just something I have to deal with.
Old 08-18-2009, 10:37 AM
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sounds like the tune to me ..



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