Infiniti FX35 / FX45. Manual - part 668

SPARK PLUG (PLATINUM-TIPPED TYPE)

EM-189

< SERVICE INFORMATION >

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CAUTION:

• Do not drop or shock spark plug.
• Do not use wire brush for cleaning.
• If plug tip is covered with carbon, spark plug cleaner may be

used.

• Checking and adjusting plug gap is not required between

change intervals.

INSTALLATION

Install in the reverse order of removal.

Gap (Nominal)

: 1.1 mm (0.043 in)

Cleaner air pressure:

Less than 588 kPa (6 kg/cm

2

, 85 psi)

Cleaning time:

Less than 20 seconds

SMA773C

SMA806CA

EM-190

< SERVICE INFORMATION >

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FUEL INJECTOR AND FUEL TUBE

FUEL INJECTOR AND FUEL TUBE

Component

INFOID:0000000001325784

• Refer to 

GI-8, "Component"

 for symbols in the figure.

CAUTION:

Do not remove or disassemble parts unless instructed as shown in the figure.

Removal and Installation

INFOID:0000000001325785

REMOVAL

WARNING:

• Put a “CAUTION: FLAMMABLE” sign in the workshop.
• Be sure to work in a well ventilated area and furnish workshop with a CO

2

 fire extinguisher.

• Do not smoke while servicing fuel system. Keep open flames and sparks away from the work area.
• To avoid the danger of being scalded, do not drain engine coolant when engine is hot.

1.

Remove engine cover with power tool. Refer to 

EM-175, "Component"

.

2.

Release fuel pressure. Refer to 

EC-665, "Fuel Pressure Check"

.

1.

Fuel feed hose

2.

Fuel feed hose bracket

3.

Centralized under-floor piping

4.

Quick connector cap

5.

O-ring

6.

Fuel tube (RH)

7.

Spacer

8.

Fuel feed damper

9.

Fuel damper and fuel hose assembly

10.

Clip

11. O-ring (Green)

12.

Fuel injector

13.

O-ring (Black)

14. Fuel tube (LH)

A.

Refer to 

EM-190

PBIC4554E

FUEL INJECTOR AND FUEL TUBE

EM-191

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3.

Disconnect fuel feed hose on engine side as follows: (Perform
same procedure for the side of centralized under-floor piping as
well.)

a.

Remove quick connector cap from quick connector connection. 

b.

Disconnect quick connector from fuel feed damper as follows:

CAUTION:

Disconnect quick connector by using quick connector release [SST: J-45488], not by picking out
retainer tabs (centralized under-floor piping side).

i.

With the sleeve side of quick connector release facing to quick connector, install quick connector release
onto fuel tube.

ii.

Insert quick connector release into quick connector until sleeve
contacts and goes no further. Hold quick  connector release  on
that position.

CAUTION:

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

iii.

Draw and pull out quick connector straight from fuel feed
damper.

CAUTION:

• Pull quick connector holding “A” position as shown in the

figure.

• Do not pull with lateral force applied. O-ring inside quick connector may be damaged.
• Prepare container and cloth beforehand as fuel will leak out.
• Avoid fire and sparks.
• Keep parts away from heat source. Especially, be careful when welding is performed around

them.

• Do not expose parts to battery electrolyte or other acids.
• Do not bend or twist connection between quick connector and fuel feed hose during installation/

removal.

PBIC4552E

SBIA0354E

KBIA0702E

EM-192

< SERVICE INFORMATION >

[VK45DE]

FUEL INJECTOR AND FUEL TUBE

• To keep clean the connecting portion and to avoid dam-

age and foreign materials, cover them completely with
plastic bags or something similar.

4.

Disconnect fuel damper and fuel hose assembly from fuel tubes (RH and LH).

CAUTION:

• While hoses are disconnected, plug them to prevent fuel from draining.
• Do not separate fuel damper and fuel hose.

5.

Remove intake manifold (upper) with power tool. Refer to 

EM-175, "Component"

.

6.

Disconnect harness connector from fuel injector.

7.

Loosen mounting bolts in reverse order as shown in the figure,
and remove fuel tube and fuel injector assembly.

CAUTION:

Do not tilt it, or remaining fuel in pipes may flow out from
pipes.

8.

Remove spacers on intake manifold (lower).

9.

Remove fuel injector from fuel tube as follows:

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 injector nozzles during removal.
• Do not bump or drop fuel injector.
• Do not disassemble fuel injector.

10. Remove fuel feed damper.

INSTALLATION

1.

Install fuel feed damper.

PBIC2205E

A.

: Right bank 

B.

: Left bank

: Engine front

PBIC3303E

PBIC1264E