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Home >> Nissan-Datsun >> 1982 >> 280ZX Base, 2.8L Eng VIN C, Automatic Trans >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Electronic Concentrated Engine Control >> Testing >> Component Testing >> Air Regulator
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Air Regulator

  1. Connect ohmmeter between pin 108 in control unit connector and ground. Resistance should be 25-90 ohms.
  2. Connect ECCS harness connectors to control unit. Turn ignition on. Fuel pump should operate for 5 seconds. If pump is not heard, check pump relay. If pump is heard, check air regulator.
  3. Start engine and pinch hose between throttle chamber and air regulator. Engine speed should decrease during warm-up, but not when engine is at operating temperature.
  4. Disconnect hoses from both ends of regulator and see if flap opens. It should move smoothly. Check resistance across terminals on regulator. If continuity exists, regulator is good. If not, replace regulator.
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