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Home >> Mazda >> 1990 >> RX-7 Base, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests >> Emission Systems & Sub-Systems >> Relief Solenoid Valve (Non-Turbo)
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Relief Solenoid Valve (Non-Turbo)

  1. Disconnect vacuum hoses from relief solenoid valve. Blow through port "A". See Fig 1 . Air should flow from air filter. Remove connector from solenoid valve.
  2. Apply battery voltage and ground to proper terminals. See Fig 1 . Blow through port "A". Air should now flow from relief solenoid valve port "B".
Fig 1: Testing Relief & Switching Solenoid Valves
G93903Courtesy of MAZDA MOTORS CORP.