And your throttle plate set screw has it completely closed and your rubber (not metal) engine mounts are in good condition, right?Randy N Connie said:Mine has never idle right since i have owned the car.
And i have tried the dr fred,dave dalke,manual,ect
way to set none have ever worked.
And I have looked for over three years for a vac leak.
Replace the IAC numerus times.have takin it to numerus
shops. No luck.
Randy
TbirdSCFan said:And your throttle plate set screw has it completely closed and your rubber (not metal) engine mounts are in good condition, right?
Take off the intake tube and look to see that the throttle plate is completely closed with the engine not running. If not, loosen the set screw, and adjust it.. What the IAC does it opens and closes fast (sort of a flutter).. the puffs of bypass air speed up the idle speed. The EEC gets RPM from the PIP signal and controls the flutter gaps on the IAC.. very much like the dwell on the spout signal. If you have a preload amount of air leaking past the throttle plate, the EEC will still control the idle; However, if that plate has too much air coming past it, the idle will be too high and can't be dropped even with the IAC fully closed.hytorksc said:i installed a new IAC, measured the voltage and resistance, everything checked out ok. And the IAC solved my cold start idle issues. But, the thing still will not stall when i unplug the IAC. i don't know whether it's really a big deal or not- the car idles fine now cold or hot.