ok i got a 94 a4 z28 and when the car gets warm about 170 degree's, the thing like bogs really bad, if you floor it off the line it will stall, or if you gas it to much anywhere lower than 2k rpm it will sputter and hesitate big time for about 2 seconds then get going...i changed the ICM, plugs, o2's(ac delco) opti is somewhat new, brand new walboro 255 in it..does anyone have any idea's

thanks mike

 

does anyone have any idea what the culprit is, i need to get it fixed asap so i can get the thing sold

 

i have the same exact problem.. i was told to check the coil wire... have you found a solution since this?

 

i replaced the coil itself and the car ran worse lol

 

My 95 did what sounds to be the samething and it was the coolant temp sensor.