LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Subaru >> 2021 >> Ascent Base >> Repair and Diagnosis >> Engine Mechanical >> Fuel System >> Fuel Injection System >> Fuel Injector >> Installation >> Fuel Injector RH
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Fuel Injector RH

  1. Replace fuel injector seal, support disc and O-ring with new parts. Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DOTC)>Fuel Injector>REPLACEMENT .
  2. Set the holder to the fuel injector, and install it straight to the fuel injector pipe RH.
    CAUTION:
    • Always use a new holder.
    • 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 and install it.
    • In order to prevent damaging the O-ring, 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.
    NOTE: Align the protrusion of the fuel injector with the fuel injector pipe RH hole.
    G13198227Courtesy of SUBARU OF AMERICA, INC.
    G13198228Courtesy of SUBARU OF AMERICA, INC.
  3. Insert the fuel injector pipe RH 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, do not install the fuel injector pipe and fuel injector by tilting them toward the cylinder head.
    G13198229Courtesy of SUBARU OF AMERICA, INC.
  4. Tighten the bolt on fuel pipe RH, and connect the connector (B) to the fuel injector #1.

    Tightening torque: 

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

  5. Connect connector (A) to the fuel pressure sensor.
    G13198217Courtesy of SUBARU OF AMERICA, INC.
  6. Install the high-pressure fuel delivery pipe assembly. Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DOTC)>High Pressure Fuel Delivery Pipe>INSTALLATION>HIGH-PRESSURE FUEL DELIVERY PIPE ASSEMBLY .
  7. Connect the ground terminal to battery sensor. Ref. to REPAIR CONTENTS>NOTE>BATTERY .