Fast Idle Control Device: Justy

1989 Subaru Justy DLSECTION Justy
  1. Turn A/C switch on, if equipped. On models without A/C, turn headlight, heater blower, rear defogger and radiator fan on. Ensure Fast Idle Control Device (FICD) solenoid operates.
  2. On auto. trans. models, ensure vacuum is applied to mixture by-pass actuator. See Fig 1 . On all models, ensure vacuum is applied to idle-up actuator. If necessary, check and adjust actuator so it opens .030" (.76 mm) man. trans. or .034" (.86 mm) on auto. trans. models. See Fig 2 .
Fig 1: FICD Control of Mixture By-Pass System
G118403Courtesy of SUBARU OF AMERICA, INC.
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.