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Home >> Daihatsu >> 1991 >> Charade SX >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests >> Idle Control System >> Auxiliary Air Valve

Auxiliary Air Valve

  1. Disconnect air cleaner hose from throttle body. Start engine. Note location of auxiliary air valve port inside throttle body. See Fig 1 .
  2. Place finger over auxiliary air valve port when coolant temperature is less than 104°F (40°C). Ensure engine speed drops. Repeat procedure with coolant temperature greater than 158°F (70°C). Engine speed should not change. Replace throttle body if auxiliary air valve fails to operate correctly.
Fig 1: Checking Auxiliary Air Valve Operation
G90B16585Courtesy of DAIHATSU MOTOR CO., LTD.
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