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

Having a misfire very odd, need help!!!

Old Aug 27, 2006 | 05:06 AM
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Default Having a misfire very odd, need help!!!

Ok this one is a toughy.

Rained heavily for the past couple of weeks and car started to chug really bad, so first i checked wires/opti

figured opti was going out so just replaced it.

Car runs fine for the first 5 minutes with new opti in it and then after it heats up, the car continues to chug and misfire, throughout the whole RPMs..

Only after it cools down it runs fine for 5 min then it repeats. Checked all wires none seem to be burnt, didnt check plugs yet.

During the chugging/misfiring a SES light comes on but shortly goes off.

any guesses?
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Old Aug 27, 2006 | 01:54 PM
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ttt....
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Old Aug 27, 2006 | 09:20 PM
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o2s? check the codes
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