I have been trying to help my buddy with this one problem but cant seem to figure it out.
When the car is warmer it hangs at 1600 when you stop (sometimes higher) and will idle around 1200-1500 all the time.
The mods:
C&L intake/upper plenum
PP T-body (not sure of size)
O/R H-pipe
Bassani Cat back
Diablo tuner
4.10s
Zex nitrous kit
MSD window switch
Fidanza Clutch
Whats been replaced searching for the problem:
Fuel filter
spark plugs
IAC
MAF meter
Now in addition to the idle problem the car falls on its face after 3500 RPM as well. It pulls well then seems to lose half its power above 3500.
It did this BEFORE the nitrous kit or window switch were installed. It does it with or without the Diablo tune installed. I have gotten it to idle ok by removing the IAC and setting the limiter on the throttle body to 800 rpm but the second the IAC gets pluged back in it jump up to over 1500, even if I have the t-body closed all the way (it will stall with the IAC off). The problem with removing the IAC is... well you all know the car dont run right without one so keeping it unpluged is not an option.
The car dose not overheat or blow smoke. No wetrd noises eaither. I am at a total loss. Any ideas? :SNSign:
When the car is warmer it hangs at 1600 when you stop (sometimes higher) and will idle around 1200-1500 all the time.
The mods:
C&L intake/upper plenum
PP T-body (not sure of size)
O/R H-pipe
Bassani Cat back
Diablo tuner
4.10s
Zex nitrous kit
MSD window switch
Fidanza Clutch
Whats been replaced searching for the problem:
Fuel filter
spark plugs
IAC
MAF meter
Now in addition to the idle problem the car falls on its face after 3500 RPM as well. It pulls well then seems to lose half its power above 3500.
It did this BEFORE the nitrous kit or window switch were installed. It does it with or without the Diablo tune installed. I have gotten it to idle ok by removing the IAC and setting the limiter on the throttle body to 800 rpm but the second the IAC gets pluged back in it jump up to over 1500, even if I have the t-body closed all the way (it will stall with the IAC off). The problem with removing the IAC is... well you all know the car dont run right without one so keeping it unpluged is not an option.
The car dose not overheat or blow smoke. No wetrd noises eaither. I am at a total loss. Any ideas? :SNSign: