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Home >> Isuzu >> 1989 >> Impulse 2.3 L, Standard >> Repair and Diagnosis >> Engine Performance >> System >> System/Component Tests - EFI >> Idle Control System >> Fast Idle Solenoid Valve (Impulse)

Fast Idle Solenoid Valve (Impulse)

  1. Disconnect fast idle solenoid connector. Check that solenoid is closed. Apply air to "Out" port. Air should not escape from "In" port. See Fig 1 .
  2. Apply battery voltage to solenoid valve connector. When battery voltage is applied, solenoid valve should open. Apply air to "Out" port. Air should escape from "IN" port. If fast idle solenoid does not function as described, repair and/or replace as required.
Fig 1: Testing Fast Idle Solenoid (Impulse)
G122377Courtesy of ISUZU MOTOR CO.
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