LEMON Manuals: Even more car manuals for everyone
Home >> Nissan-Datsun >> 2003 >> Sentra SE-R, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 191 (Engine Controls - Removal & Installation) >> Fuel Systems >> Fuel Injectors & Fuel Tubes >> Installation

Fuel Injectors & Fuel Tubes: Installation

WARNING: This page is about a different car, the 2003 Infiniti Q45, 2003 Infiniti M45, 2003 Infiniti G35, 2003 Infiniti FX45, and 2003 Infiniti FX35. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION: Handle "O" ring with bare hands. Never wear gloves. Lubricate "O" ring with new engine oil. Do not clean "O" ring with solvent. Make sure that "O" ring and its mating part are free of foreign material.
WARNING: 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 fuel tube. Insert "O" ring straight into fuel tube. Do not decenter or twist it.
  1. Install fuel damper and fuel sub-tube:
    • Insert fuel damper and fuel sub-tube straight into fuel tube.
    • Tighten mounting bolts evenly in turn.
    • After tightening mounting bolts, make sure that there is no gap between flange and fuel tube.
  2. Install "O" rings to fuel injector paying attention to the items below.
    CAUTION: Upper and lower "O" ring are different. Be careful not to confuse them. Fuel tube side is Black. Nozzle side is Green.
  3. Install fuel injector to fuel tube with the following procedure:
      CAUTION: Do not reuse clip. Replace it with a new one. Be careful to keep clip from interfering with "O" ring. If interference occurs, replace "O" ring.
    • Insert clip into clip mounting groove on fuel injector. Insert clip so that lug "A" of fuel injector matches notch "A" of the clip. See Fig 6.
    • Insert fuel injector into fuel tube with clip attached. Insert it while matching it to the axial center. Insert fuel injector so that lug "B" of fuel tube matches notch "B" of the clip. Make sure that fuel tube flange is securely fixed in flange fixing groove on clip.
    • Make sure that installation is complete by checking that fuel injector does not rotate or come off.
  4. Install fuel tube and fuel injector assembly to intake manifold. Tighten mounting bolts in two steps in numerical order shown. See Fig 7.
    CAUTION: Be careful not to let tip of injector nozzle come in contact with other parts.
  5. Connect injector sub-harness.
  6. Install intake manifold collector (upper) and (lower). See INTAKE MANIFOLD COLLECTOR (FX35 & G35) .
  7. Install fuel sub-tube on rear end of intake manifold collector (lower).
  8. Connect fuel feed hose (with damper):
    • Handling procedure of "O" ring is the same as that of fuel damper and fuel sub-tube.
    • Insert fuel damper straight into fuel sub-tube.
    • Tighten mounting bolts evenly in turn.
    • After tightening mounting bolts, make sure that there is no gap between flange and fuel sub-tube.
  9. Connect quick connector between fuel feed hose and centralized under-floor piping connection with the following procedure:
    • Check the connection for damage and foreign materials.
    • Align the connector with the tube, then insert the connector straight into the tube until a click is heard.
    • After connecting the quick connector, visually confirm that the two retainer tabs are connected to the connector. Pull the tube and the connector to make sure they are securely connected. See Fig 8.
      • CAUTION: If cap cannot be installed smoothly, quick connector may have not been installed correctly. Check connection again.
    • Install quick connector cap to quick connector connection. Install quick connector cap with arrow on surface facing in direction of quick connector (fuel feed hose side). See Fig 9.
    • Secure fuel feed hose to clamp.
  10. Install in the reverse order of removal, after this step.
Fig 1: Identifying Fuel Injector & Fuel Tube Components
G00265236Courtesy of NISSAN MOTOR CO., U.S.A.
Fig 2: Removing & Installing Fuel Injector & Fuel Tube (FX35 & G35 - 1 Of 8)
G00265237Courtesy of NISSAN MOTOR CO., U.S.A.
Fig 3: Removing & Installing Fuel Injector & Fuel Tube (FX35 & G35 - 2 Of 8)
G00265238Courtesy of NISSAN MOTOR CO., U.S.A.
Fig 4: Removing & Installing Fuel Injector & Fuel Tube (FX35 & G35 - 3 Of 8)
G00265239Courtesy of NISSAN MOTOR CO., U.S.A.
Fig 5: Removing & Installing Fuel Injector & Fuel Tube (FX35 & G35 - 4 Of 8)
G00265240Courtesy of NISSAN MOTOR CO., U.S.A.
Fig 6: Removing & Installing Fuel Injector & Fuel Tube (FX35 & G35 - 5 Of 8)
G00265241Courtesy of NISSAN MOTOR CO., U.S.A.
Fig 7: Removing & Installing Fuel Injector & Fuel Tube (FX35 & G35 - 6 Of 8)
G00265242Courtesy of NISSAN MOTOR CO., U.S.A.
Fig 8: Removing & Installing Fuel Injector & Fuel Tube (FX35 & G35 - 7 Of 8)
G00265243Courtesy of NISSAN MOTOR CO., U.S.A.
Fig 9: Removing & Installing Fuel Injector & Fuel Tube (FX35 & G35 - 8 Of 8)
G00265244Courtesy of NISSAN MOTOR CO., U.S.A.


CAUTION: Handle "O" ring with bare hands. Never wear gloves. Lubricate "O" ring with new engine oil. Do not clean "O" ring with solvent. Make sure that "O" ring and its mating part are free of foreign material.
WARNING: 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 fuel tube. Insert "O" ring straight into fuel tube. Do not decenter or twist it.
  1. Install fuel damper (right) and fuel feed damper:
    • Insert fuel damper (right) and fuel feed damper straight into fuel tube (right).
    • Tighten mounting bolts evenly in turn. After tightening mounting bolts, make sure that there is no gap between flange and fuel tube (right).
    2. NOTE: Upper and lower "O" ring are different. Be careful not to confuse them. Fuel tube side is Black. Nozzle side is Green.
  2. Install "O" rings to fuel injector.
  3. Install fuel injector to fuel tube with the following procedure:
      CAUTION: Do not reuse clip. Replace it with a new one. Be careful to keep clip from interfering with "O" ring.
    • Insert clip into clip mounting groove on fuel injector. Insert clip so that lug "A" of fuel injector matches notch "A" of the clip. If interference occurs, replace "O" ring. See Fig 2.
    • Insert fuel injector into fuel tube with clip attached. Insert it while matching it to the axial center. Insert fuel injector so that lug "B" of fuel tube matches notch "B" of the clip. Make sure that fuel tube flange is securely fixed in flange fixing groove on clip.
    • Make sure that installation is complete by checking that fuel injector does not rotate or come off. Make sure that protrusions of fuel injectors are aligned with cutouts of clips after installation.
  4. Install fuel tube and fuel injector assembly to intake manifold. Tighten fuel tube assembly mounting bolts "A" to "B" in illustration and in two steps. See Figure.
    CAUTION: Be careful not to let tip of injector nozzle come in contact with other parts.
  5. Install all removed parts in the reverse order of removal.
Fig 1: Removing & Installing Fuel Injector & Fuel Tube (FX45 - 1 Of 2)
G00265248Courtesy of NISSAN MOTOR CO., U.S.A.
Fig 2: Removing & Installing Fuel Injector & Fuel Tube (FX45 - 2 Of 2)
G00265249Courtesy of NISSAN MOTOR CO., U.S.A.


NOTE: Lubricate "O" rings by smearing with new engine oil. Be careful not to damage "O" rings and surfaces for "O" ring sealing with service tools, finger nails or clips. Do not expand or twist "O" rings. Discard old clips; replace with new ones.
  1. Carefully install "O" rings, including the one used the fuel damper.
  2. Position clips in grooves on fuel injectors. Make sure that protrusions of fuel injectors are aligned with cutouts of clips after installation.
  3. Align protrusions of fuel tubes with those of fuel injectors.
  4. After properly inserting fuel injectors, check to make sure that fuel tube protrusions are engaged with those of fuel injectors, and that flanges of fuel tubes are engaged with clips.
  5. Tighten fuel tube assembly mounting bolts "A" to "C" in illustration and in two steps. See Fig 3.
  6. Install all removed parts in the reverse order of removal.
Fig 1: Removing & Installing Fuel Injector & Fuel Tube (M45 & Q45 - 1 Of 3)
G00265245Courtesy of NISSAN MOTOR CO., U.S.A.
Fig 2: Removing & Installing Fuel Injector & Fuel Tube (M45 & Q45 - 2 Of 3)
G00265246Courtesy of NISSAN MOTOR CO., U.S.A.
Fig 3: Removing & Installing Fuel Injector & Fuel Tube (M45 & Q45 - 3 Of 3)
G00265247Courtesy of NISSAN MOTOR CO., U.S.A.
scientia non olet · About LEMON Manuals