Idle Air Control

How do I replace the IAC on My '00 Mazda MPV ?

The Idle Air Control (IAC) valve controls the engine idle speed and dashpot functions. The valve is located on the side of the throttle body. This valve allows air, determined by the Powertrain Control Module (PCM) and controlled by a duty cycle signal, to bypass the throttle plate in order to maintain the proper idle speed.

See below for Replacement procedure

Spark Plugs

Spark Plug Wires

Coil on Boot

Air Filter

Basic Air Conditioning

Recharging

Retrofit

Automatic Climate Control

Front Disc Brakes

Rear Disc Brakes

Rear Drum Brakes

Master Cylinder

Starting

Charging

Window Motor

Head Lights

Filters

Tires

Tune - up

Fluids

NOTE: The Idle Air Control (IAC) valve is an integral component of the Bypass Air Control (BAC) valve.

Disconnect the negative battery cable.
Disconnect the water hoses (if equipped) and air hose from the BAC/IAC valve.

IAC

Disengage the wiring harness connector from the BAC/IAC valve.
Remove the mounting fasteners from the valve assembly.
Remove the BAC/IAC valve assembly, along with the mounting gasket and O-ring from the vehicle.
To install:
Remove any foreign material from the contact surface.
Install the BAC/IAC valve assembly, with a new mounting gasket and O-ring, onto the engine in correct position.
Install and tighten the mounting fasteners to 14–18 ft. lbs. (19–25 Nm) on 3.0L engines, and 22–30 inch lbs. (2.5–3.4 Nm) on 2.6L engines.
Plug in the valve wiring harness connector.
Connect the air hose and water hoses (if equipped) to the valve assembly.
Connect the negative battery cable.
If equipped with water hoses, verify that the valve assembly does not leak