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Seemingly random misfire...

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Old 03-13-2009, 10:34 PM
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Car: 1992 Z28
Engine: 350 TPI
Transmission: World Class T-5 5speed manual Trans
Axle/Gears: STOCK G92 performance 3.42
Seemingly random misfire...


So i tried to pass smog in CALI. I failed at idle with 4-5 times the amount of HC's. All of the other values were fine and in the range. Upon listening to my warm engine idle, i hhave discovered that i have (thought i cured) a seemingly random misfire. It sounded fine brbbrbrbrbbrbrrbrbrbrbrbr*blip*brbrbrbrbrbbrbrbrbrbr*bablip*brbrbrbrbrbrbbrbr
bbrbrbrbbrbrbrbrbrbrb*blip*

Any Ideas and input is greatly appreciated, i am officially stumped. ive replaced everything aside from the motor which has about 20K on it. L98 with 193 heads...
Old 03-14-2009, 09:52 PM
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Join Date: Jul 2006
Location: Cali
Posts: 246
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Car: 1992 Z28
Engine: 350 TPI
Transmission: World Class T-5 5speed manual Trans
Axle/Gears: STOCK G92 performance 3.42
Re: Seemingly random misfire...

Any helpers?? Ideas??
Would be greatly apprecieated even if you are wrong
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