LT1 Misfire

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Jun 2, 2009 | 06:54 AM

95RamAirNC

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From: Mcleansville NC

LT1 Misfire

95 Trans Am, misfires but not all the time it's like most of the time runs ok has a stutter but ive given up on that because its got 180,000 miles.....

Any ideas about the misfire??? I have a new opti spark I will be replacing this coming weekend and new 02 sensors.... Thanks for any tips or help

Jun 2, 2009 | 02:11 PM

ss.slp.ls1

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From: Orange County, CA

Quote:

Originally Posted by 95RamAirNC

95 Trans Am, misfires but not all the time it's like most of the time runs ok has a stutter but ive given up on that because its got 180,000 miles.....

Any ideas about the misfire??? I have a new opti spark I will be replacing this coming weekend and new 02 sensors.... Thanks for any tips or help

With that many miles it could be anything. I would install new plugs (NGK TR55's), new wires (MSD 8.5mm), and a new coil (GM replacement) to go with the new opti (hopefully you bought a AC Delco/Delphi opti). I would also perform the ICM cooling mod.

Jun 2, 2009 | 03:06 PM

94CamaroZ28SS

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yeah i would suspect it is the OPTI mine backfired like that then totally went, buy like ss.slp.ls1 said you should replace the plugs, wires, coil, and opti!

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