Landcruiser 4WD L6-4.5L (1FZ-FE) (1993)
Vacuum Switching Valve for EVAP: Testing and Inspection
INSPECTION
1. Remove air intake chamber.
2. Remove vacuum switching valve.
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Disconnect the air hose and vacuum hose from the air intake chamber.
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Remove the 4 bolts and emission control valve set assembly.
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Disconnect the connector and 2 vacuum hoses, and remove the screw and vacuum switching valve.
3. Inspect vacuum switching valve for open circuit.
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Using an ohmmeter, check that there is continuity between the terminals.
Resistance: 30 - 33 ohms at 20°C (68°F)
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If there is no continuity, replace the vacuum switching valve.
4. Inspect vacuum switching valve 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 vacuum switching valve.