Pickup 4WD V6-180.5 2959cc 3.0L SOHC (3VZ-E) (1990)
Air Injection Vacuum Control Solenoid Valve: Testing and Inspection
Air Suction Vacuum Switching Valve
Fig. 68 Vacuum Switching Valve Test (Energized)
Fig. 69 Vacuum Switching Valve Test (Non-Energized)
1.
Connect the VSV terminals to the battery terminals as illustrated in Fig. 68
2.
Blow into pipe E and check that air comes out of pipe F.
3.
Disconnect the battery.
4.
Blow into pipe E and check that the air comes out of the air filter, if a problem is found replace the VSV, Fig. 69
Fig. 70 Vacuum Switching Valve Short Circuit Test