3-Way Solenoid Valve
- Disconnect vacuum sensing tube at servo diaphragm. Disconnect intake manifold vacuum tube at solenoid valve. On 626 models, disconnect electrical connector and connect battery power as shown in Fig 1. On all other models, disconnect wire which comes from engine speed switch and ground terminal as shown in Fig 2.
Courtesy of MAZDA MOTORS CORP.
- Turn ignition switch on. Blow air through hose disconnected from servo diaphragm; air should escape at solenoid filter. Turn ignition switch off and blow through hose again; air should escape from intake manifold vacuum inlet port. If valve does not respond as outlined, replace 3-way solenoid valve.
Courtesy of MAZDA MOTORS CORP.