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Home >> Mazda >> 1979 >> RX-7 GS, Automatic Trans >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Exhaust Emissions System - Air Pump Air Injection System >> Testing >> Air Pump

Air Pump

  1. With engine at normal operating temperature, inspect all hose connections for leaks. Check for pump noise and belt tension. Disconnect air line to air control valve.
  2. Connect hose to a pressure gauge. Start and run engine at idle speed. Gauge should register more than 1.64 psi (.12 kg/cm2 ) with engine at 800 RPM. If pump outlet is below specification, replace pump.
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