Throttle Opener Vacuum Switching Valve
- Disconnect hoses and electrical connector from throttle opener Vacuum Switching Valve (VSV).
- Throttle opener VSV is rear VSV located near front of valve cover. VSV contains a 2-wire electrical connector with a Red/Green and Black/Orange wire.NOTE: Throttle opener VSV may also be identified using appropriate illustration in THEORY/OPERATION article.
- Use ohmmeter to ensure continuity exists between electrical terminals on VSV and resistance is within specification. See THROTTLE OPENER VSV RESISTANCE SPECIFICATIONS table.THROTTLE OPENER VSV RESISTANCE SPECIFICATIONS
Application Ohms @ 68°F (20°C) Paseo 37-44 - No continuity exists between each electrical terminal and the body of VSV. Apply air pressure to port "E". Ensure air passes out port "G" . Perform STEP 1. See Fig 1.
- Connect battery voltage and ground to VSV terminals. Apply air pressure to port "E". Ensure air passes out port "F" and not port "G" . Perform STEP 2. See Fig 1. Replace VSV if defective.