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

cold start miss/chug type feel

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Old 03-12-2012, 03:29 PM
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Default cold start miss/chug type feel

When I start my car cold im getting something that feels like a slight miss or chug type feeling that last for about 10-15 seconds and then clears up, otherwise car runs strong. I just replaced the coil a few days ago cause it died on me but the car did this before the replacament, also replaced the ICM at the same time. The opti, plugs, wires have less than 10k on them. What could this be? Like said car runs great otherwise.
Old 03-12-2012, 03:36 PM
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My car does this too. If i try to drive it right after starting it cold, like say to move it from the driveway to garage, when i give it gas it has a miss feel to it. If i let it run for literally a minute tho, its fine. I have a 600 lift cam in a stock long block though, Good to hear that other cars do it that dont have a 600 lift cam haha.
Old 03-12-2012, 08:34 PM
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I have to warm my car up before it will behave, I watch the scanmaster for the coolant temp to get above 130 before it will act right.



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