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

starts up runs fine then no start

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Old 04-10-2014, 08:46 AM
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i have a 93 camaro with 355 and a procharger. the car will start and run fine for how ever long you run it and then you shut it off let it sit for 30 min and then no start till the next day. any ideas? thanks in advance
Old 04-10-2014, 09:39 AM
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You have to troubleshoot when the problem is present. Check for spark and fuel.
Old 04-10-2014, 10:25 AM
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ok thank you. im thinking possable bad icm?
Old 04-10-2014, 10:27 AM
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it has fuel for sure i have a gauge in the car. the car did blow a head gasket and it started this after. maybe head got so hot messed the icm up
Old 04-10-2014, 10:33 AM
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Originally Posted by spilner
ok thank you. im thinking possable bad icm?
Very possibly, when they start going bad they do act up more once they get some heat in them, I got stuck in a parking lot for 30+ mins a couple times before mine would finally start up when mine was on the blink, but never hurts to do some diagnostics as mentioned before throwing parts at it. The security light isn't on is it?
Old 04-10-2014, 10:57 AM
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no security light. vats turned off in the tune
Old 04-10-2014, 11:23 AM
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Don't pick an item (like ICM) and try to convince yourself that is it. Rather, troubleshoot and prove where your trouble is.
Old 04-10-2014, 12:14 PM
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i went to auto zone and the didnt have the test for a 93 but they did for the 95 both parts look them same but when they did the test for the 95 on the 93 icm it said it was bad. should i try some where else or is it bad?
Old 04-10-2014, 01:36 PM
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anyone trust that test?
Old 04-10-2014, 04:00 PM
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IDK about the test. You could always try a new ICM, then take it back if it is not the problem.



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