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Home >> Nissan-Datsun >> 2019 >> Altima Edition ONE >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 6 (Engine Mechanical (Pr25DD) (2 Of 2)) >> Removal And Installation >> Fuel Injector And Fuel Tube >> FUEL INJECTOR AND FUEL TUBE : Removal & Installation >> Installation

FUEL INJECTOR AND FUEL TUBE : Removal & Installation: Installation

WARNING: This page is about a different variant/trim than selected.
  1. If removed, install the high pressure fuel rail studs.
  2. Install seal ring to fuel injector using the following procedure:
    CAUTION:
    • Handle seal ring with bare hands. Do not wear gloves.
    • Do not apply engine oil to seal ring.
    • Do not clean seal ring with solvent.
    1. Install Tool (A) to fuel injector (1).
      GNSJPBIA4386Z-386Courtesy of NISSAN NORTH AMERICA, INC.

      Tool number

      : KV10119720 (J-50364)
    2. Set seal ring (1) into Tool (A).
      GNSJSBIA0348Z-348Courtesy of NISSAN NORTH AMERICA, INC.

      Tool number

      : KV10119730 (J-50364)
    3. Straightly insert seal ring (1), which is set in step b, to fuel injector as shown and install onto fuel injector.
      GNSJSBIA0350Z-350Courtesy of NISSAN NORTH AMERICA, INC.
      CAUTION: Be careful that seal ring does not exceed the groove portion of fuel injector.
    4. Insert Tool (A) to fuel injector and rotate clockwise and counterclockwise by 90 deg. while pressing seal ring to fit it.
      GNSJSBIA0351Z-351Courtesy of NISSAN NORTH AMERICA, INC.
      NOTE: This is done to correct any elongation of the seal ring caused by installation and for preventing sticking when inserting fuel injector into cylinder head.

      Tool number

      : KV10119710 (J-50364)
  3. Install O-ring and backup ring to fuel injector.
    CAUTION:
    • Do not reuse O-ring.
    • Handle O-ring with bare hands. Do not wear gloves.
    • Lubricate O-ring with new engine oil.
    • Do not allow engine oil into fuel passage of fuel injector.
    • Do not clean O-ring with solvent.
    • Check that O-ring and its mating part are free of foreign material.
    • When installing O-ring, be careful not to scratch it with tool or fingernails. Also be careful not to twist or stretch O-ring. If O-ring was stretched while it was being attached, do not insert it quickly into high pressure fuel rail.
    • Insert new O-ring straight into fuel rail. Do not decenter or twist it.
    • Always install the backup ring (1) in the right direction as instructed.
      GNSJPBIA3864Z-864Courtesy of NISSAN NORTH AMERICA, INC.
  4. Install the fuel injectors and high pressure fuel rail using the following procedure:
    1. Install the injector holder (1) onto the fuel injector (2).
      GNSALBIA0206Z-206Courtesy of NISSAN NORTH AMERICA, INC.
      CAUTION:
      • Do not reuse injector holder.
      • Be careful to keep injector holder from interfering with O-ring. If interference occurs, replace O-ring.
    2. Insert fuel injector into high pressure fuel rail with injector holder attached.
      • Insert it while matching it to the axial center.
      • Insert so that tab (B) of injector holder is aligned to cutout (A) of high pressure fuel rail.
        GNSALBIA0207Z-207Courtesy of NISSAN NORTH AMERICA, INC.
    3. Check that installation is complete by checking that fuel injector does not rotate or come off.
      • Check that tabs of injector holders and high pressure fuel rail are aligned after installation.
  5. Install the fuel injector and high pressure fuel rail assembly into the cylinder head and tighten the nuts and bolts using the following procedure:
    GNSALBIA0521Z-521Courtesy of NISSAN NORTH AMERICA, INC.
    1. Hand tighten bolt (2) and nut (3).
    2. Tighten nuts and bolts to the specified torque in the sequence shown.

      High pressure fuel rail nuts and bolts

      : 10.0 N.m (1.0 kg-m, 89 in-lb)
    3. Tighten nuts and bolts to the specified torque in the sequence shown.

      High pressure fuel rail nuts and bolts

      : 20.5 N.m (2.1 kg-m, 15 ft-lb)
  6. Install the fuel rail pressure sensor (if necessary) using the following procedure:
    CAUTION:
    • Do not reuse fuel rail pressure sensor.
    • Do not use fuel rail pressure sensor that has been dropped.
    • Check that high pressure fuel rail and fuel rail pressure sensor screw have no damage, foreign matter, or stains.
    • Do not use a tool on the fuel rail while tightening the fuel pressure sensor or fuel rail damage could result.
    • Do not scratch or crack high pressure fuel rail when installing fuel rail pressure sensor.
    • Apply engine oil to the threaded portion and front edge of the fuel rail pressure sensor.
    • Before tightening fuel rail pressure sensor, securely install a hexagon tool.
    1. Lubricate fuel rail pressure sensor threads with clean engine oil.
      CAUTION: Check that high pressure fuel rail and fuel rail pressure sensor threads have no damage or foreign matter.
    2. Tighten fuel rail pressure sensor to the specified torque.

      Fuel rail pressure sensor

      : 10.0 N.m (1.0 kg-m, 89 in-lb)
    3. Tighten fuel rail pressure sensor to the specified angle using Tool.
      CAUTION:
      • To check tightening angle, use Tool. Do not judge the angle by visual inspection.
      • The torque value for the angle tightening must be 90 N.m (9.2 kg-m, 66 ft-lb) or less.
      • If torque value reaches 90 N.m (9.2 kg-m, 66 ft-lb), then replace the fuel rail pressure sensor and high pressure fuel rail with a new one.

      Tool number

      : KV10112100 (BT-8653-A)

      Tightening angle

      : 45 deg. - 50 deg.
  7. Connect the fuel rail pressure sensor harness connector.
  8. Connect the fuel injector harness connector.
  9. Install the high pressure fuel tube using the following procedure:
    CAUTION:
    • Do not reuse the high pressure fuel tube.
    • If scratches or damage on the end of the high pressure fuel tube are present, do not use it.
    • Always tighten in the correct order to the specified tightening torque.
    • Check that there is no foreign material on the high pressure fuel tube flare nipple and flare nuts.
    1. Hand tighten until the high pressure fuel tube (1) flare nuts (A) and (C) contact the seat.
      GNSALBIA0520Z-520Courtesy of NISSAN NORTH AMERICA, INC.
      CAUTION: When hand tightening the flare nuts, insert them so that they are aligned with the center of the pipe.
    2. Hand tighten bolt (B).
    3. Tighten flare nut (A) to the specified torque.

      Flare nut

      : 23.0 N.m (2.3 kg-m, 17 ft-lb)
    4. Tighten flare nut (C) to the specified torque.

      Flare nut

      : 23.0 N.m (2.3 kg-m, 17 ft-lb)
    5. Again tighten flare nuts to the specified torque in the order of (A) and (C).
      CAUTION: Before tightening, check that the suitable tool is attached at a 90 deg. angle to the flare nut when working.

      Flare nuts

      : 23.0 N.m (2.3 kg-m, 17 ft-lb)
    6. Tighten bolt (B) to the specified torque.

      Bolt

      : 25.0 N.m (2.6 kg-m, 18 ft-lb)
  10. Installation of the remaining components is in the reverse order of removal.
    • After replacing fuel injector, perform "AIR FUEL RATIO INITIAL LEARNING". Refer to Work Procedure .
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