jt121212

99 ss, bolt ons /exhaust/8# of boost. had it dyno tuned ,ran good for about 90 miles, it feels like it lost some power and will not idle. took it to the dealer and pluged it in, said it was showing no codes. ,revs up to about 1500 rpms for 20 sec then drops to about 450 and runs really rough then dies out. i put new msd coils/plugs/wires/and o2s and still runs the same any suggestions on what it could be??????thanks for any help guys.

KamikazeSS

jt, I'm having a similar problem with my procharger setup (99 SS w/ 7 lbs of boost). Mine isn't revving up to 1500, but it will idle smoothly at about 900 for about 20 sec, then drop to about 500. It will do that about 4 times, then it dies. This is killing me because I'm ready to run this thing. By the way, I noticed you're also in Michigan. Where did you take it for the tune.

ZL1Killa

iTrader: (17)

who tuned it? i would take it back to them and see whats up.

Kanes2413

iTrader: (9)

im having a weird idle problem too. mine is surging every feew sections. the rpms waiver around and the car vibrates hard . Its getting more consistent but the car still runs all the with no problems but i dont like how its idling now? any thoughts