Attention! The optional air supply valve is not sold separately. If the valve is defective, the entire air control unit must be replaced while the engine is idling. This unit mounts to the intake manifold and includes an auxiliary air supply valve, an idle speed increase solenoid valve, and an idle speed adjusting screw.
The auxiliary air supply valve is located on the right side of the intake manifold.
Disconnect the negative battery cable before removing it.
Removing
1. Disconnect the connector from the solenoid valve.
2. Remove the mounting screws, then remove the valve from the intake manifold along with the plunger and spring.
3. Check the valve plug and spring for signs of wear or damage and replace if necessary.
Installation
4. Installation is carried out in the reverse order of removal. Check that the plunger and spring are installed correctly.