Mustang GT V8-4.6L SOHC VIN X (1998)
Idle Speed/Throttle Actuator - Electronic: Description and Operation
The Idle Air Control valve (IAC valve):
-
is used to control engine idle speed (rpm).
-
is mounted on the throttle body, upper intake manifold or the throttle body adapter (depending upon application).
-
allows air to bypass the throttle plate. The amount of air allowed to bypass is determined by the Powertrain Control Module (PCM) and controlled
by a duty cycle signal.
