LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Cars stalls at stops, idles bad...intermittent problem...HELP!

Old Jun 19, 2006 | 02:38 PM
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WeirdRich's Avatar
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Joined: Feb 2005
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From: Holland, MI
Cars stalls at stops, idles bad...intermittent problem...HELP!

OK just got the motor back in the car and Im having a similar problem as last year...

Some times it fruns fine, idles fine, drives fine, etc... Its not hot/cold dependent eather, nor is it a open/closed loop problem.

Other times, it just sucks. It cant stay runnign at an idle, the rpms just jump from about 400-800 until it stalls. It canjt stay running in neutral, or at a stop sigsn, light, etc... for the same problem. I was thinking it may be a tps problem, but could that be intermittent like this? (I never slotted it for my BBK 58mm TB, but the car ran fine for 6+ months) What about the pcm?

Any suggestions are welcome, I just want to be able to drive my car.

Its a 385 stroker, BBK 58mm TB, new MAP sensor, aftermarket MAF ends, relocated IAT, K&N FIPK.
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