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Home >> Subaru >> 2021 >> WRX Base >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Fuel Injection System (2.0L) >> High Pressure Fuel Delivery Pipe >> Installation >> High-Pressure Fuel Delivery Pipe ASSY
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High-Pressure Fuel Delivery Pipe ASSY

  1. Install the high-pressure fuel delivery pipe assembly.
    CAUTION: Always use a new high-pressure fuel delivery pipe assembly.
    1. Temporarily tighten the flare nut (A) to the fuel injector pipe by hand until it is seated, and secure the high-pressure fuel delivery pipe assembly to the water pipe assembly using bolts (B).

      Tightening torque: 

      T1: 6.4 N.m (0.7 kgf-m, 4.7 ft-lb)

    2. Tighten the flare nuts (A).

      Tightening torque: 

      T2: 25 N.m (2.5 kgf-m, 18.4 ft-lb)

    Fig 1: High - Pressure Fuel Delivery Pipe Assembly, Flare Nuts And Bolts (With Torque Specification)
    G09479673Courtesy of SUBARU OF AMERICA, INC.
  2. Install the fuel pipe insulator No. 3. Refer to FUEL INJECTION (FUEL SYSTEMS) (W/O STI)>FUEL INSULATOR>INSTALLATION>FUEL PIPE INSULATOR NO. 3 .
  3. Install the fuel pipe insulator No. 2. Refer to FUEL INJECTION (FUEL SYSTEMS) (W/O STI)>FUEL INSULATOR>INSTALLATION>FUEL PIPE INSULATOR NO. 2 .
  4. Install the fuel pipe insulator No. 1. Refer to FUEL INJECTION (FUEL SYSTEMS) (W/O STI)>FUEL INSULATOR>INSTALLATION>FUEL PIPE INSULATOR NO. 1 .
  5. Install the intake manifold. Refer to FUEL INJECTION (FUEL SYSTEMS) (W/O STI)>INTAKE MANIFOLD>INSTALLATION .
  6. Connect the ground terminal to battery sensor. Refer to NOTE>NOTE>BATTERY .