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Home › Honda › 1991 › Civic Si › Repair and Diagnosis (Single Page) › Engine Performance › System › Engine Controls - System/Component Tests › Idle Control System › Engine Controls - System/Component Tests › Fast Idle Control Solenoid (1.6L)

Fast Idle Control Solenoid (1.6L)

  1. Disconnect 2-pin connector at fast idle control solenoid valve. Disconnect upper vacuum hose from fast idle control solenoid valve, and connect vacuum gauge to valve.
  2. Start engine. While observing vacuum gauge, use jumper wires to energize fast idle control solenoid by connecting battery voltage to Black/Yellow wire and grounding Blue wire of solenoid valve. If gauge does not read manifold vacuum, replace fast idle control solenoid valve.
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