thanks camaro 69 for the most part when in drive my car does idle at 600 in park but then it just feels like it chokes and dies, so is there any way of just resetting the iac to make sure that working correctly?

 

Huh? You messin with me?
Did you try the adjustment procedure in the previous link?

 

The previous link forgot two important steps.
Place ECM in diagnostic mode with ALDL Pins A & B shorted, turn key on, engine off, unplug IAC after it extends.
Remove the short, then start engine and set base idle with screw adjustment.
Turn engine off, key off, plug in IAC, disconnect battery removing DTC, and reconnect battery.
Turn ign on, engine off, for 15 seconds, this allows ECM to set IAC - a starting point for the IAC, then turn off ign.
Now start the engine and drive the car for ECM to relearn, including a WOT effort.

Rpm should be around 700-750, including with a load or not, in gear, A/C on, steering wheel turning, any and all accessories on, etc., and in neutral, as well.

If no control, then either IAC is bad, driving stage of ECM is broke, there are two of them one circuit for extend, the other for retract, or bad wiring between the ECM and IAC.

 

good info thanks guys ill try it out tommorow i also just got some indy 500 tires for my z 28 and wanted to know what the correct psi should be??? i know it differs from front tires to back tires?

 

Run 35 PSI on all four tires.

 

thats what i was thinking i have them at 32 and the side walls dont look right

 

don't see it anywhere, but verify the iac ports arent clogged with soot or grime, and that the throttle body is clean