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

very weird???

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Old Mar 17, 2011 | 10:03 PM
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Exclamation very weird???

just did a winter build and got it out on the road. car starts and idles fine but when in gear its missing, backfiring etc all over the rpms. put a new opti on car did same thing but now is worse. when you get in the throttle a little bit the needle for the tack flickers and the car cuts out the i get a ses light on that goes away every time i start it. i still have no tune yet because its been running so bad.
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Old Mar 17, 2011 | 10:08 PM
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also want to add i have checked plugs and wires and every other plugs
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Old Mar 17, 2011 | 10:09 PM
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maybe the ICM.
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Old Mar 17, 2011 | 10:12 PM
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Originally Posted by nitrous2fast
maybe the ICM.
its never done the flicker then ses before though i wouldnt expect the icm to just stop working correctly
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Old Mar 17, 2011 | 10:40 PM
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Sounds like what happened to me when my battery cable came loose...double check all your grounds and put the battery on a load test(not just voltage).

Could be something that simple like in my case.
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Old Mar 18, 2011 | 10:07 AM
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Originally Posted by Puck
Sounds like what happened to me when my battery cable came loose...double check all your grounds and put the battery on a load test(not just voltage).

Could be something that simple like in my case.
i did notice when this happens the voltage drops but i can make it do it
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Old Mar 18, 2011 | 06:13 PM
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the icm is good, coil is good, vacuum lines to opti are good, sensors are all plugged in and all grounds are good
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