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

Running put exhaust is popping

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Old Nov 26, 2009 | 09:35 PM
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96Formula6spd's Avatar
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Default Running put exhaust is popping

Well we made some improvement on the car after 3 months of dead ends. Ending up changing my ICM and found a plug wire that was crossed. So it fired right up after cleaning the plugs. However when its running and you put a light load on the engine you start to get a loud popping in the exhaust. However if you give it a lot of gas it does not pop at all. The engine has not yet been broke in and that could be the issue. Also the car is still throwing a p1351 for the ICM voltage being to high. What do you guys think?
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Old Nov 26, 2009 | 10:09 PM
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how old is the gas?
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Old Nov 26, 2009 | 10:27 PM
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9 months old. Car has been sitting for repairs for a long time. Happy to see it running again for once.
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Old Nov 27, 2009 | 08:08 PM
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the fuel could very likely be the cause. if its not a full tank dilute the mixture with fresh fuel. that nasty crap will cause it to misfire and run rough, get horrible mileage, and poor power. dealt with it before.
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Old Jan 14, 2010 | 03:11 AM
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you ever find out the problem?
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