Nissan Sentra manuals

Nissan Sentra Service Manual: Fuel injector and fuel tube

Exploded View


  1. Bracket
  2. Fuel tube bracket
  3. Fuel feed tube
  4. Quick connector cap
  5. Fuel tube
  6. O-ring (black)
  7. Fuel injector
  8. O-ring (green)
  9. Injector clip

CAUTION:

Do not remove or disassemble parts unless instructed.

Removal and Installation

WARNING:

REMOVAL

  1. Remove engine room cover. Refer to EM-24, "Exploded View".
  2. Release the fuel pressure. Refer to EC-143, "Work Procedure".
  3. Remove intake manifold. Refer to EM-27, "Exploded View".
  4. Disconnect quick connector with the following procedure. Disconnect fuel feed tube (1) from fuel tube (3).

NOTE:

There is no fuel return path.

  1. Remove quick connector cap (engine side) (2) from quick connector connection.


  1. With the sleeve (B) side of Tool (A) facing quick connector, install Tool (A) onto fuel tube.
  2. Insert Tool (A) into quick connector (2) until sleeve (B) contacts and goes no further. Hold quick connector release on that position (C).

(D) : Insert and retain

CAUTION:


CAUTION:

Inserting quick connector release hard will not disconnect quick connector. Hold quick connector release where it contacts and goes no further.

Draw and pull out quick connector straight from fuel tube (1).

CAUTION:


  1. Disconnect harness connector from fuel injector.
  2. Loosen fuel tube bracket nuts and end bolts and remove fuel tube brackets.
  3. Remove fuel tube and fuel injector assembly.

CAUTION:


  1. Remove fuel injector from fuel tube with the following procedure:
  1. Open and remove clip (2)
  2. Remove fuel injector (3) from fuel tube (1) by pulling straight.

CAUTION:


CAUTION:

INSTALLATION

  1. Install O-rings to fuel injector.

CAUTION:

Fuel tube side : Black

Nozzle side : Green

  1. Install fuel injector to fuel tube with the following procedure:
  1. Insert clip (2) into clip mounting groove (F) on fuel injector (4).

(3) : O-ring (black)

(5) : O-ring (green)

CAUTION:

  1. Insert fuel injector into fuel tube (1) with clip attached.


  1. Check that installation is complete by checking that fuel injector does not rotate or come off.
  1. Set fuel tube and fuel injector assembly at its position for installation on cylinder head.

CAUTION:

For installation, be careful not to interfere with fuel injector nozzle.

  1. Install fuel tube and injector assembly onto cylinder head.


  1. Connect harness connector to fuel injector.
  2. Install fuel tube bracket.
  3. Connect fuel feed tube with the following procedure.
  1. Check for damage or foreign material on the fuel tube and quick connector.
  2. Apply new engine oil lightly to area around the top of fuel tube.
  3. Align center to insert quick connector straightly into fuel tube.

(B) : Insertion direction

(E) : Fitted condition

CAUTION:


CAUTION:

  1. Pull quick connector hard by hand holding position. Check it is completely engaged (connected) so that it does not come out from fuel tube.
  2. Install quick connector cap (engine side) (2) to quick connector connection.

(1) : Fuel feed hose

(3) : Fuel tube


CAUTION:

  1. Install fuel feed hose to hose clamp.
  1. Installation of remaining components is in the reverse order of removal.

Inspection

INSPECTION AFTER INSTALLATION

Check on Fuel Leakage

  1. Turn ignition switch “ON” (with the engine stopped). With fuel pressure applied to fuel piping, check there are no fuel leaks at connection points. Refer to.

NOTE:

Use mirrors for checking at points out of clear sight.

  1. Start the engine. With engine speed increased, check again that there are no fuel leaks at connection points.

CAUTION:

Do not touch the engine immediately after stopping, as the engine becomes extremely hot.

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