Idle Air Control (IAC) Reset Procedure

IMPORTANT: If installing a new IAC valve, be sure to replace with an identical part. IAC valve pintle shape and diameter are designed for the specific application.

Measure the distance between tip of IAC valve pintle and mounting flange. If greater than 28 mm, use finger pressure to slowly retract the pintle. The force required to retract the pintle of a new valve will not cause damage to the valve.

Reset IAC valve pintle position:
a. Disconnect negative battery cable for at least ten seconds to clear PCM memory.
b. Reconnect negative battery cable.
c. Start engine, check for proper idle operation.