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Home >> Renault >> 1979 >> LeCar >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Exhaust Emissions System - Air Injection System >> Testing >> System Air Pressure

System Air Pressure

  1. With engine running at normal operating temperature and at 3000 RPM, detach hose from outlet side of diverter valve. Connect a pressure gauge to diverter valve outlet port and note reading.
  2. It should be approximately 4.3 psi (.30 kg/cm2 ). If below this pressure, check air filter, air pump, and/or drive belt. If above this pressure, relief valve may not be opening.
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