acdelco's, not sure exact ones, assuming stock. the plug wires are aftermarket too. the guy claimed to have had replaced them 3k ago...
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wires are "belden edge" 7mm wires. i compared resitance between the wires on my gt and the gtp, there about the same resistance. not sure about plugs. its pouring i just got soaked checkin wires
Bill lives in Enfield CT, im sure he could diagnose it for you if you get it to him, i see you are from mass. Sounds like either the o2 sensor is out of range at wot or a bad fuel injector. is the car completely stock?
41-101 are iridiums. Shouldn't be a problem. Unless you pull that cylinder and see something directly shorting the tab to the center. I'v ehad that happen on a couple ATVs in the past.
i also forgot to metion it only does it when im heavy on the throttle but when i was light just gettin up to speed i did not notice a missfire. i drove for an hour on the highway and the last like 2 miles from home i layed on it and thats when it misfired/
have you checked the injector to see if its connected or maybe bad ?
Your compression is fine.. totally normal.
I'd be looking at the coils to see if you have a weak one.
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