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

Lt1 surges at low rpm's on HW!

Old 10-03-2010, 06:08 PM
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Default Lt1 surges at low rpm's on HW!

Just replaced my opti wiring harness(cracked it during an opti swap a few months ago) and now it surges on the highway at low rpm's. When I cracked it I just plugged it back in and it was working fine. Any ideas?

BTW, if you guys happen to need one of these there about $250 at the stealership. Got mine from summit for $35...hmm maybe that's the problem...
Old 10-03-2010, 07:06 PM
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You can try to make sure a wire from the harness isn't arcing and wrap some exctrical tape around each wire, and then check your spark plug wires to make sure they are all good.
Old 10-03-2010, 07:10 PM
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I hope the thing isn't arcing, it's brand new...and I did plugs and wires with the opti...
Old 10-03-2010, 07:58 PM
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Wait I'm confused, it's $250 for a harness at the dealership??? But you said the cracked harness works fine???


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