Nissan X-Trail 32. Manual - part 1072

FUEL INJECTOR AND FUEL TUBE

EM-185

< REMOVAL AND INSTALLATION >

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4.

Disconnect quick connector 

 with the following procedure.

a.

Disconnect fuel feed hose 

 from bracket hose clamp 

.

b.

Disengage 

 and pull up 

 the pawl of the fuel feed hose con-

nector retainer 

 to disconnect the fuel feed hose from high

pressure fuel pump.
NOTE:
If the fuel feed hose is stuck, hold the fuel pipe by hand and dis-
connect it by pushing and pulling.

CAUTION:

• Keep parts away from heat source. Especially, be careful

when welding is performed around them.

• Never expose parts to battery electrolyte or other acids.
• Never bent or twist connection between quick connector

and fuel feed hose (with damper) during installation/
removal.

• Pull quick connector holding 

.

• Never remove the retainer.
• Prepare a tray and waste beforehand as fuel leaks out.
• Never pull with lateral force applied. O-ring inside quick

connector may be damaged.

• To prevent damage to each joint and protect it from the

entry of foreign matter, cover the joint with plastic bag 
or an equivalent.

5.

Disconnect harness connector from fuel injector.

6.

Remove fuel tube and fuel injector assembly.

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Retainer color

: Red

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FUEL INJECTOR AND FUEL TUBE

• Loosen mounting bolts in the order of 2, 1 as shown in the fig-

ure.

CAUTION:

• When removing, be careful to avoid any interference with fuel

injector.

• Use a shop cloth to absorb any fuel leakage from fuel tube.

7.

Remove fuel injector from fuel tube with the following procedure:

a.

Open and remove clip 

.

b.

Remove fuel injector 

 from fuel tube 

 by pulling straight.

CAUTION:

• Be careful with remaining fuel that may go out from fuel

tube.

• Be careful not to damage fuel injector nozzle during

removal.

• Never bump or drop fuel injector.
• Never disassemble fuel injector.

c.

Remove O-ring.

INSTALLATION

CAUTION:

Do not reuse O-rings.
1.

Note the following, and install O-rings to fuel injector.

CAUTION:

• Do not reuse O-ring.
• Upper and lower O-rings are different. Be careful not to confuse them.

• Handle O-ring with bare hands. Never wear gloves.
• Lubricate O-ring with new engine oil.
• Never 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 is stretched while installing, never insert it quickly into fuel tube.

• Insert O-ring straight into fuel tube. Never decenter or twist it.

2.

Install fuel injector to fuel tube with the following procedure:

: Engine front

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Fuel tube side

: Black

Nozzle side

: Green

FUEL INJECTOR AND FUEL TUBE

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a.

Insert clip 

 into clip mounting groove 

 on fuel injector 

.

• Insert clip so that protrusion 

 of fuel injector matches cut-out

 of clip.

CAUTION:

• Never reuse clip. Replace it with a new one.
• Be careful to keep clip from interfering with O-ring. If

interference occurs, replace O-ring.

b.

Insert fuel injector into fuel tube 

 with clip attached.

• Insert it while matching it to the axial center.
• Insert fuel injector so that protrusion 

 of fuel tube matches

cut-out 

 of clip.

• Check that fuel tube flange 

 is securely fixed in flange fixing

groove  

on 

clip.

c.

Check that installation is complete by checking that fuel injector
does not rotate or come off.

3.

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.

4.

Install fuel tube and injector assembly onto cylinder.
• Tighten mounting bolts in the order of 1, 2 as shown in the fig-

ure.

5.

Connect harness connector to fuel injector.

6.

Connect fuel feed hose with the following procedure, and them install the fuel feed hose.

a.

Check no foreign substances are deposited in and around matching pipe and quick connector, and no
damage on them.

b.

Quick connector shall be inserted gradually, aligning with the axis of the matching pipe.

c.

Insert the retainer until it clicks and check the retainer is locked.
After insertion, pull the connector and check that the connector
is locked.

CAUTION:

If retainer cannot be installed smoothly, quick connector
may be have not been installed correctly. Check connection
again.

d.

After attaching the quick connector and fix the hose to the clamp.

7.

Install intake manifold. Refer to 

EM-176, "Exploded View"

.

: O-ring (Black)

: O-ring (Green)

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: Engine front

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: Lock position

: Unlock position 

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FUEL INJECTOR AND FUEL TUBE

Inspection

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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.
NOTE:
Use mirrors for checking at points out of clear sight.

2.

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

CAUTION:

Never touch the engine immediately after stopped, as the engine becomes extremely hot.