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Relief Solenoid Valve (Non-Turbo)
- Disconnect vacuum hoses from relief solenoid valve. Blow through solenoid port "A". See Fig 1
. Check that air flows from port "B". Disconnect relief solenoid valve connector from relief solenoid valve.
- Apply battery voltage and ground to the terminals. Blow through port "A" and check that air flows from relief solenoid valve air filter.
Courtesy of MAZDA MOTORS CORP.