Vapor Pressure Sensor Vacuum Switching Valve (Land Cruiser & Tundra)
WARNING: This page does not describe the selected car, but rather 10 other vehicles, including the 2002 Toyota Tundra, 2002 Toyota Tacoma, 2002 Toyota Sienna, 2002 Toyota Sequoia, and 2002 Toyota Land Cruiser. However, it is still accessible from the selected car via links, so may be relevant.
- Remove vapor pressure sensor Vacuum Switching Valve (VSV). Vapor pressure sensor VSV is located on charcoal canister. See Figure, Figure and Figure .
- Using ohmmeter, ensure continuity exists between electrical terminals on vapor pressure sensor VSV and that resistance is 37-44 ohms at 68°F (20°C). Replace vapor pressure sensor VSV if no continuity exists or resistance is not within specification.
- Using ohmmeter, ensure no continuity exists between each electrical terminal and body of vapor pressure sensor VSV. Replace vapor pressure sensor VSV if continuity exists between electrical terminal and body of vapor pressure sensor VSV.
- To test vapor pressure sensor VSV operation, apply air pressure to port "E". Ensure air flows from port "G" and not from port "F". Perform STEP 1 in illustration. See Fig 1.
- Apply battery voltage and ground to electrical terminals on vapor pressure sensor VSV. Apply air pressure to port "E". Ensure air flows from port "F" and not from port "G". Perform STEP 2 in illustration. See Fig 1. Replace vapor pressure sensor VSV if defective.