Tacoma 2WD L4-2.4L (2RZ-FE) (1996)
Vacuum Switching Valve (VSV) for EGR: Testing and Inspection
1. REMOVE VSV.
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Remove the bolt.
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Disconnect the connector and 2 vacuum hoses from the VSV.
2. INSPECT VSV.
A. Inspect VSV for open circuit.
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Using an ohmmeter, check that there is continuity between terminals.
Resistance: At 20°C (68°F): 33 - 39 ohms
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If there is no continuity, replace the VSV
B. Inspect VSV for ground.
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Using an ohmmeter, check that there is no continuity between each terminal and the body.
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If there is continuity, replace the VSV
C. Inspect VSV operation.
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Check that air does not flow from ports E to F.