pwirch

just installed my procharger d1sc 8 rib tuner kit, i had my programmer over and we got the car idling perfect, in neutral reving the car is fine, no hesitation whatsoever. the problem is when its under load driving. giving the car any gas it has a massive hesitation at any rpm. my programmer put in a program from this site to see if it would correct the problem and it did not help. he cut the fuel down and that diddent help either. I checked all my hoses and connections several times and everything looks good. its set up for 8 psi on a 2000 pontiac trans am 6 speed with a 255 liter pump. is the problem fuel possibly, thats what ati thinks but there tech line wasent very helpful. any help with this would be appriciated, im dying to beat the living crap out of this thing!!!

DarkFormula

iTrader: (80)

Is your MAF screen removed? If it is, put it back in.

I had the SAME exact problem when I first installed mine. The screen fixed it

black01_WS6

iTrader: (13)

If you were running rich while tuning you may have gotten fuel on the 02 sensors and they are on their way out. See if you can get your 02's read on ls1edit. I am just trying to give you options. I would check the MAF, and then the 02's. I had a problem with my car stumbling, but idiling fine. had bad 02's, changed them and the problem went away.

EPP

iTrader: (22)

The 02's very well could be shot, I have seen them be the culprit many times. Get a wide band air/fuel gauge connected on the car, and make sure at wide open throttle the air/fuel is at 11.5/1. I would also use a fuel pressure gauge. At idle you should see 58 to 60 psi, and at wide open throttle it is normal to see the fuel pressure drop approx 4 psi. Bob

lmt0705

iTrader: (7)

i did not remove the screen, the car ran perfectly before the supercharger and Im pretty sure when my tuner was over the o2s were reading fine. is it possible it is way too lean?

slow trap

iTrader: (22)

if you're pretty sure the o2s are fine i'll say it's lean,that is no good ! tune her quickly.