[04ctd]

i always try cleaning the TB, IAT & IAC with carb cleaner.
do the IAT sensor while it is off, that what the ECM don't go crazy, the intake air temp sensor should be in the air piping

the idle air control valve is rigiht on the TB, around the throttle plate.


shut if off, soak it down, let sit 5 minutes, then crank it & spray some more in the IAC ports (have someone keep it running by mashing gas)

and then, disconnect the battery & let it set overnight.

that erases the codes, and forces the ECM to relearn where the IAC valve is, so it can take control of the idle,

the IAC is usually a digital stepper on OBD2 cars, and it can lose track of which step it is on.

remember on old TPI cars, you had to screw the pintle in on the IAC & reset it, then do the battery ECM reset.