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

car misfire

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Old Oct 12, 2002 | 12:57 AM
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From: HorsePower Central
Default car misfire

Driving around today my car developed a miss. It was just out of the blue. It sorta feels like a spark plug wire but yet the car will still pull if I give it more gas. When I did heads/cam I put a brand new opti on the car, but I have had a small oil leak on the crank that has been spinnin oil up on the motor.

I went to advance today and they put it on a scanner. With out the car running I showed that the O2's where bad, so I bought 2 new ones. The scanner didn't show any misfires for it to be the opti, but the car wasn't running. I do think however if I was gettin misfires it still would have showed up. Anyway, put the new O2's on and it is still missing, it also backfires. I went ahead and bought a new coil and that also didn't help what so ever.

I did autotap the car and I have no misfires on any cylinder. But I am throwing a Crankshaft Sensor code, and by getting that code would I not be able to see if I had any misfires? I've ruled out everything but the opti. Just don't want it to be that considering this new one only has about 4000 miles on it. Anyone have any other ideas....
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