EGR Vacuum Switching Valve
- Turn ignition off. Disconnect Green ECM connector and VSV connector. Vacuum Switching Valve (VSV) is Blue and is mounted near right side of valve cover, at front of engine on Samurai and Sidekick. On Swift DOHC, solenoid is mounted behind engine, near center of firewall. On Swift SOHC, solenoid is located between distributor and EGR modulator. Turn ignition on.
- Check for battery voltage on appropriate wire terminal at VSV connector. See EGR VACUUM SWITCHING VALVE POWER TERMINAL ID
table. If battery voltage is present, go to next step. If battery voltage is not present, check circuit between VSV and EFI main/control relay. If circuit is okay, check EFI main relay. See EFI MAIN RELAY under RELAYS
.EGR VACUUM SWITCHING VALVE POWER TERMINAL ID
Application Wire Color Samurai Blue/Black - Turn ignition off. Check resistance between solenoid terminals. If resistance is not 33-39 ohms, replace solenoid. Disconnect upper and lower hoses from VSV. Connect short section of hose to lower horizontal port of solenoid. Blow air through hose connected to solenoid. Air should exit through filter.
- If air does not exit through filter, replace solenoid. If air exits through filter, energize solenoid by applying battery voltage to appropriate wire terminal and ground to other terminal. See EGR VACUUM SWITCHING VALVE POWER TERMINAL ID table. Solenoid should click. Blow air through hose connected to solenoid. Air should now exit through other port and not through filter. If test is not as specified, replace solenoid.