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

big problem, car shut off *help*

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Old Oct 9, 2006 | 07:44 PM
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Revelation Z28's Avatar
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Default big problem, car shut off *help*

well from my old thread about surging i was getting a surge on idle, IAC valve fixed it until today. now it was surging/missing throughout the rpm range in neutral. and i unplugged the MAF and ran it on speed density. i went to 4500rpm in 1st and around 3000 it sputtered, 3500 sputtered bigger, then a big sputter and it shut off. it restarted right away when rolling so i dont think its the opti. could the ICM be the problem? it does this missing/sputter in 1st and 2nd gear mostly between 2000rpm and 5000rpm. itll do it on idle and i can hear a faint noise right before it sputters to 1500rpm. i think it may be a plug wire arching. they arent touching anything metal, but the coil to opti wire has a split in the coil side boot 1/4" down from the end.

the engine has power and it pulls all the way.... it seems like the more load i give it in thoes particular gears itll start missing/sputter. when i bring the idle to 1500 itll pop a little in the exhaust.

ever since i did a burnout and bogged the engine down to 200-300rpm from too much brakes i put the clutch in to not stall it then it started doing this.

Last edited by @nthony; Oct 9, 2006 at 08:08 PM.
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Old Oct 9, 2006 | 08:28 PM
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check the 02's
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Old Oct 9, 2006 | 08:32 PM
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will do. i should just replace them they are the stock 13yr old ones.

Originally Posted by White 96LT1
check the 02's
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Old Oct 10, 2006 | 01:20 AM
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bump.. im gonna take the manifolds off and do plugs and wires.

should i get OVC wires from taylor?

im gonna replace the o2 sensors too.
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Old Oct 10, 2006 | 08:17 AM
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i just got regular taylor wires on my car. and they work just fine
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Old Oct 21, 2006 | 06:26 AM
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Did you ever fix the problem? If so what did you do?
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Old Oct 21, 2006 | 02:04 PM
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well i regularly clean my coil wire of the carbon, i RTV'd the split on the boot.. it runs ok, but i found all the plug wires on the driver side bank arcing where the looms are, and 3 and 5 are arcing at the plug. im gonna replace the wires asap now.

Originally Posted by Honda Hunter
Did you ever fix the problem? If so what did you do?
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