okay i have recently bought a 2000 pontiac grand prix gtp daytona 500 edition for cheap. car has no previous problems but yesterday i was coming home from work and car developed a miss fire at heavy acceleration when car gets into boost. i have checked all the coil packs did not change anything yet becuase this car can get expensive. if the car sits and cools down and i try running it hard the miss is not that bad but if it warms up and i get on it hard it will just miss all around and not pick up speed just need some input on what im getting into i know nothing about this car and would like a starting point besides spark plugs and wires cause ive changed them and fuel filter recently........ any help would be nice........ by the way no service codes have popped up or anything.......
