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3-Way Solenoid Valves (626 Only)

NOTE: Test procedure is the same for each EGR valve. Test each valve separately.
  1. Disconnect vacuum sensing tubes from solenoid valve and vacuum pipe. Blow through tube "B" shown in Fig 1. Air should pass through valve and escape through port "A".
    Fig 1: Testing Mazda 626 Three-Way Solenoid Valves
    G09313940Courtesy of MAZDA MOTORS CORP.
  2. Disconnect electrical connector and apply battery power to terminals in connector as shown in Fig 1. Blow through hose again; air should pass through valve and escape at solenoid valve air filter. If valve does not respond as outlined, replace 3-way solenoid valve.
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