my car recently had idle problems, sometimes when im driving it starts to idle wierd. Ok ill drive and when i let off the gas it jerks hard and when i sit at a light idle bounced from 1 to 1500 and when i start to drive it jerks like im tapping on the peddle and it only does it up to 3500 rpms so i have to shut the car off and turn it back on to stop, what could be the problem, i have a drag 3 turbo kit with the INLINE fuel pump??

 

whast your fuel management? perhaps its running to lean/rich at idle.

 

i have that vortech fmu that came with it, i have not tuned it yet