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16 Posts
Alright I have a 96 Z28 and it misfires. At startup it will idle fine and during the engine being cold, but once it gets to operating temperature it will begin to misfire throughout acceleration. If I throw it down say in 3rd gear and punch it, it runs fine and no misfire and seems to have alot of power. But also when I launch through first it seems fine but when I hit second and get to a high rpm it's like its reving high but the wheels arent turning while it's in gear. I think alot of people call this cam surge, like if I stop and it still idles at 2K then drops slowly. I don't know what the prob is. I replaced the Opti, Coil, Wires, Plugs, and it still does it. Even tuned the valves. I dont know if the cam is worn out or the lobes got flat but I need some help. This could be anything, maybe even a bad harness or PCM or vac leak. Well if anyone can help or has any suggestions let me know. Also it had a code P100 not too long ago that I deleted and it never came back but I tested the MAF and it wasn't bad. 972-679-5322