EGR Solenoid
- Disconnect vacuum hoses and blow through vent hose. See Fig 1
. Ensure air flows. Disconnect solenoid connector.
- Apply 12 volts to White/Blue wire ("B" terminal) of solenoid and ground both Red/Black wires ("A" and "C" terminals) of solenoid. Blow through vent hose and ensure air does not flow. Replace solenoid if not okay.
- Blow through vacuum hose and ensure air does not flow. Apply 12 volts to Blue/White wire connector of solenoid and ground both Red/Black wire connectors of solenoid. Blow through vacuum hose and ensure air does flow. Replace solenoid if not okay.
Courtesy of MAZDA MOTORS CORP.