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Home >> Subaru >> 2019 >> WRX Series.Gray >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Fuel Injection System (Except For STI) >> High Pressure Fuel Pump >> Installation >> High-Pressure Fuel Pump
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High-Pressure Fuel Pump

  1. Install the fuel pump lifter to the high-pressure fuel pump case.
    NOTE: Apply engine oil to the side of the high-pressure fuel pump case and to the bottom surface of the fuel pump lifter.
    G09479701Courtesy of SUBARU OF AMERICA, INC.
  2. Using TORX PLUS® bit 40IP, install the high-pressure fuel pump.
    NOTE: Use new O-rings.

    Tightening torque: 

    21 N.m (2.1 kgf-m, 15.5 ft-lb)

    G09479700Courtesy of SUBARU OF AMERICA, INC.
  3. Connect the connector (B) to the high-pressure fuel pump, and install the fuel delivery pipe (A) to the high-pressure fuel pump.
    CAUTION:
    • Check that there is no damage or dust on the quick connector. If necessary, clean the seal surface of the pipe.
    • When connecting the quick connector, make sure to insert it all the way in before locking the slider.
    • When it is difficult to lock the slider, check that the connector is fully inserted.
    • After locking the slider, check again that the quick connector is securely connected.
    NOTE: Connect the quick connector as shown in the figure.
    G13258448Courtesy of SUBARU OF AMERICA, INC.
    G09479699Courtesy of SUBARU OF AMERICA, INC.
  4. Install the high-pressure fuel delivery pipe. Refer to FUEL INJECTION (FUEL SYSTEMS) (EXCEPT FOR STI)>HIGH PRESSURE FUEL DELIVERY PIPE>INSTALLATION>HIGH-PRESSURE FUEL DELIVERY PIPE .
  5. Connect the ground terminal to battery sensor. Refer to NOTE>NOTE>BATTERY .