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Home >> Subaru >> 2021 >> WRX Base >> Repair and Diagnosis >> Engine Mechanical >> Fuel System >> Fuel Injection System (2.0L) >> Fuel Injector >> Installation >> Fuel Injector LH
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Fuel Injector LH

  1. Replace the injector seal, backup ring and O-ring with a new part. Refer to FUEL INJECTION (FUEL SYSTEMS) (W/O STI)>FUEL INJECTOR>REPLACEMENT .
  2. Set the spacer, holder, rubber cover and snap ring to the fuel injector, and install it to the fuel injector pipe LH.
    CAUTION: Always use a new spacer, holder, rubber cover and snap ring.
    G13641093Courtesy of SUBARU OF AMERICA, INC.
  3. Set the fuel injector on the fuel injector pipe LH.
    CAUTION:
    • on the fuel injector pipe LH must be aligned with on the rubber cover.
    • Parting line (a) of the rubber cover must be straight.
      G12444121Courtesy of SUBARU OF AMERICA, INC.
    • The end surface of the fuel injector pipe LH must fit inside the rubber cover.
    • There must be no gap between the snap ring and rubber cover.
    G12444122Courtesy of SUBARU OF AMERICA, INC.
  4. Install the fuel injector pipe LH and fuel injector as a single unit to the cylinder head.
  5. Tighten the bolt on fuel injector pipe LH, and connect the connector (A) to the fuel injector.

    Tightening torque: 

    19 N.m (1.9 kgf-m, 14.0 ft-lb)

    G09479664Courtesy of SUBARU OF AMERICA, INC.
  6. Install the high-pressure fuel delivery pipe assembly. Refer to FUEL INJECTION (FUEL SYSTEMS) (W/O STI)>HIGH PRESSURE FUEL DELIVERY PIPE>INSTALLATION>HIGH-PRESSURE FUEL DELIVERY PIPE ASSY .
  7. Install the high-pressure fuel delivery pipe. Refer to FUEL INJECTION (FUEL SYSTEMS) (W/O STI)>HIGH PRESSURE FUEL DELIVERY PIPE>INSTALLATION>HIGH-PRESSURE FUEL DELIVERY PIPE .
  8. Connect the ground terminal to battery sensor. Refer to NOTE>NOTE>BATTERY .
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