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Home >> Subaru >> 2021 >> Outback Base >> Repair and Diagnosis >> Engine Mechanical >> Fuel System >> Fuel Injection System (2.5L) >> Fuel Injector >> Installation >> Fuel Injector LH

Fuel Injector LH

  1. Prepare for installing the fuel injector using the following new parts. Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DO)>FUEL INJECTOR>REPLACEMENT .
    • Fuel injector seal
    • Slider washer
    • Back-up ring
    • O-ring seal
    • Stopper ring
  2. Install the fuel injector holder.
    G13223877Courtesy of SUBARU OF AMERICA, INC.
  3. Align the protrusion of the fuel injector holder to the anti-rotation slot of the fuel injector pipe LH, and install the fuel injector straight to the fuel injector pipe LH.
    CAUTION:
    • Degrease inside of the fuel injector insertion hole of the fuel injector pipe.
    • Check the inside of the fuel injector insertion hole of the fuel injector pipe for foreign materials or damage.
    • Be careful not to allow gasoline to contact with the fuel injector seal and the inside of the mounting hole.
    • Apply liquid paraffin to the O-ring seal and install it.
    • In order to prevent damaging the O-ring seal, do not install the fuel injector to the fuel injector pipe by tilting or twisting it.
    • Make sure there is no gap between the fuel injector pipe and the fuel injector holder.
    • Make sure there is no gap between the fuel injector and the fuel injector holder.
    G13947121Courtesy of SUBARU OF AMERICA, INC.
  4. Connect the coupling harness to the fuel injector #4.
  5. Insert the fuel injector pipe LH and fuel injector as a single unit into the cylinder head, and align their positions. Then, evenly press the sections (A) and (B).
    CAUTION:
    • When installing, apply liquid paraffin to the fuel injector seal.
    • In order to prevent damaging the O-ring seal, do not install the fuel injector pipe and fuel injector by tilting them toward the cylinder head.
    G13223883Courtesy of SUBARU OF AMERICA, INC.
  6. Tighten the bolts which hold the fuel injector pipe LH.

    Tightening torque: 

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

  7. Connect the connector (C) to the fuel injector #2.
  8. Install the clip (B), and connect the connector (A) to the coupling harness.
    CAUTION: Do not pass the coupling harness through the shaded area (a) shown in the figure.
    G13223884Courtesy of SUBARU OF AMERICA, INC.
    G13618406Courtesy of SUBARU OF AMERICA, INC.
  9. Install the A/C compressor. Ref. to AIR CONDITIONER>COMPRESSOR>INSTALLATION .
  10. Install the V-belt cover bracket.

    Tightening torque: 

    6.4 N.m (0.7 kgf-m, 4.7 ft-lb)

  11. Install the V-belts. Ref. to V-BELT .
  12. Install the high-pressure fuel delivery pipe. Ref. to HIGH-PRESSURE FUEL DELIVERY PIPE .
  13. Install the high-pressure fuel delivery pipe assembly. Ref. to HIGH-PRESSURE FUEL DELIVERY PIPE ASSEMBLY .
  14. Install the air intake boot. Ref. to INTAKE (INDUCTION) (H4DO)>AIR INTAKE BOOT>INSTALLATION .
  15. Connect the ground terminal to battery sensor. Ref. to REPAIR CONTENTS>NOTE>BATTERY .
  16. Check refrigerant leaks. Ref. to AIR CONDITIONER>REFRIGERANT LEAK CHECK>INSPECTION .
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