T100 Pickup 2WD L4-164.4 2693cc 2.7L DOHC (3RZ-FE) (1995)
Vacuum Switching Valve for Fuel Pressure Control: Testing and Inspection
1. REMOVE VACUUM SWITCHING VALVE (VSV).
Disconnect the connector and 2 vacuum hoses, remove the bolt and VSV.
2. INSPECT VSV.
A. Inspect VSV for open circuit.
Using an ohmmeter, check that there is continuity between the terminals.
Resistance at 20°C (68°F): 33 - 39 Ohms
If there is no continuity, replace the VSV.
B. Inspect VSV for ground.
Using an ohmmeter, check that there is no continuity between each terminal and the body.
If there is continuity, replace the VSV.
C. Inspect VSV operation.
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Check that air flows from pipe E to pipe G.