problem with my 1999 TA
problem with my 1999 TA i have a 1999 pontiac trans am and i brought it from a dealer ship. it already
had a SLP loud mouth exaust and the K & N induction system. i ran it at the track and ran good. then the next week out it through rear O2 codes saying low voltedge. so i replaced them both. it still didnt fix the problem. And it would only though the code on the 4th or 5th pass down the track and it would run 4 tenths in the quarter. So i went to the dyno shop and had him shut the rear O2s off. so i took it to the track and it ran fine. then the next week i took it and the first pass was 13.62 , 2nd pass 13.63, 3rd pass 13.83, then the 4th pass 14.19. so i ran right after that when it was hot and it ran 14.37. i'm not spining because its a auto with mickey tompson drag radials. i dont know if maybe the plugs are bad because i dont know if they have been changed. the car only have 70,000 miles. i was just woundering if any one else has had any of these problems.
had a SLP loud mouth exaust and the K & N induction system. i ran it at the track and ran good. then the next week out it through rear O2 codes saying low voltedge. so i replaced them both. it still didnt fix the problem. And it would only though the code on the 4th or 5th pass down the track and it would run 4 tenths in the quarter. So i went to the dyno shop and had him shut the rear O2s off. so i took it to the track and it ran fine. then the next week i took it and the first pass was 13.62 , 2nd pass 13.63, 3rd pass 13.83, then the 4th pass 14.19. so i ran right after that when it was hot and it ran 14.37. i'm not spining because its a auto with mickey tompson drag radials. i dont know if maybe the plugs are bad because i dont know if they have been changed. the car only have 70,000 miles. i was just woundering if any one else has had any of these problems.
i race at marion county raceway in Ohio. when the car is runing good the trap speeds are 101 or 102 but when it slowed down it was 99 or 98. its lost times from 60ft till the traps.
