Three-Way Solenoid Valve
- Unplug connectors from water thermo switch. Connect jumper wires to both connectors. Disconnect vacuum sensing tube from EGR control valve and from three-way solenoid valve.
- Turn ignition on. Apply air pressure to disconnected EGR vacuum sensing tube. See Fig 2. Air should pass through valve and come out air valve filter.
- Remove jumper wire from both connectors. Apply air pressure to same tube. Air should pass through three-way solenoid valve and come out port "D". If three-way solenoid valve does not test as specified, it must be replaced.
Courtesy of MAZDA MOTORS CORP.
Courtesy of MAZDA MOTORS CORP.