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Home >> Chrysler >> 1989 >> Conquest Standard >> Repair and Diagnosis >> Engine Performance >> System >> System/Component Tests - TBI >> Exhaust Gas RECIRCULATION >> Fuel Evaporation >> Purge Control System

Purge Control System

  1. Disconnect purge hose from air intake hose and plug air intake hose. Connect hand vacuum pump to disconnected purge hose. Start engine and let idle.
  2. With engine temperature 113°F (45°C) or less (cold engine), apply 3.8 in. Hg. Vacuum should hold. Raise engine speed to 2500 RPM. Vacuum should hold.
  3. Return to idle. Bring engine temperature to 185°F (85°C) or more (warm engine). Apply 3.8 in. Hg vacuum. Vacuum should hold. Raise engine speed to 2500 RPM. Vacuum should not hold.
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