2018 Subaru Crosstrek Base, Automatic CVT TransFACTORY OEM SERVICE PROCEDURE

Engine Wiring Harness: Installation

  1. Set the engine wiring harness to the engine, and connect each connector. Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DO)>General Description>COMPONENT>ENGINE WIRING HARNESS .
    NOTE:
    • When replacing the engine wiring harness of the variable capacity A/C model with a new part, remove the tape (a), disconnect the coupling harness from the engine wiring harness. and then dispose the coupling harness.
      G12391461Courtesy of SUBARU OF AMERICA, INC.
    • For installation of the coupling harness for variable capacity A/C model, refer to "Fuel Injector". Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DO)>Fuel Injector>INSTALLATION>FUEL INJECTOR LH .
    • When installing the engine wiring harness of the variable capacity A/C model, connect the coupling harness to the engine wiring harness, and then fix with the tape (a).
      G11252813Courtesy of SUBARU OF AMERICA, INC.
    • If the clip is damaged, replace it with a new part.
    • Before replacing the clip, put an alignment mark (a) on both engine wiring harness and clip to remove the clip, and then align to the alignment mark (a) to attach a new clip to the engine wiring harness.
    G11252869Courtesy of SUBARU OF AMERICA, INC.
  2. Install the fuel insulator. Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DO)>Fuel Insulator>INSTALLATION .
  3. Install the intake manifold assembly. Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DO)>Intake Manifold Assembly>INSTALLATION .
  4. Connect the battery ground terminal. Ref. to REPAIR CONTENTS>NOTE>BATTERY .
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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.

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