[GaryFenza]

2003 Pontiac Grand Prix GT 3800 Series II 122K miles.

On a cold day like 25 degrees in the morning, and first start of day, the car seems to idle at 1500RPM's FOREVER, until i tap the gas pedal and then it goes down to normal operating temperature where it should be, because the car is warm at this point, but only if i tap the gas, if not will continue idling at 1500rpms. I replaced the IAC and cleaned the heck out of the spot where it seats to the throttle body. Im a little confused, and there are no codes or nothing.