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Home >> Subaru >> 2017 >> WRX Base >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Fuel Injection System (2.0L) >> High Pressure Fuel Pump >> Installation >> High-Pressure Fuel Pump

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.
    Fig 1: Locating Fuel Pump Lifter Of Fuel Pump Case
    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) 

    Fig 2: Removing High-Pressure Fuel Pump Using Torx Plus® Bit 40IP
    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.
    Fig 3: Connecting Quick Connector
    G11574579Courtesy of SUBARU OF AMERICA, INC.
    Fig 4: High-Pressure Fuel Pump Connector And Fuel Delivery Pipe
    G09479699Courtesy of SUBARU OF AMERICA, INC.
  4. Install the high-pressure fuel delivery pipe. <Ref. to HIGH-PRESSURE FUEL DELIVERY PIPE , INSTALLATION, High Pressure Fuel Delivery Pipe.>
  5. Connect the ground terminal to battery sensor. <Ref. to BATTERY , NOTE, Note.>
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