■ WARNING ■ Read “General Precautions” when working on the fuel system. Refer to General Precautions (GT-R certified NISSAN dealer). REMOVAL

1.Check fuel level on fuel gauge. If fuel gauge indicates more than the level as shown in the figure (more than quarter), drain fuel from fuel tank until fuel gauge indicates level as shown in the figure or below.
NOTE：
Because fuel is spilled when removing main and sub fuel level sensor units if the top of the fuel exceeds the main and sub fuel level sensor units installation surface.

- As a guide, fuel level becomes the position as shown in the figure or less when approximately 50 (13-1/4 US gal, 11 Imp gal) of fuel are drained from fuel tank.

2.Release the fuel pressure from the fuel lines. Refer to Inspection (GT-R certified NISSAN dealer).

3.Open fuel filler lid.

4.Open filler cap and release the pressure inside fuel tank.

5.Remove rear seat cushion. Refer to Exploded View.

6.Peel off floor carpet, and then remove inspection hole cover (1) units by turning clips (2) clockwise by 90 degrees.

A | : Direction mark
b | : 90°
| : Vehicle front

Right side | : Main fuel level sensor unit, fuel filter and fuel pump assembly
Left side | : Sub fuel level sensor unit

7.Disconnect harness connectors (2), (3), fuel feed tube (4), and fuel return tube (1).

| : Vehicle front

■ CAUTION ■

- Put a matching mark onto each tube for reference during installation.
- Use a shop cloth to prevent fuel from splashing when disconnecting each fuel tube.

- Disconnect quick connector (1) as follows:

  B | : Connection (Cross-section)
  D | : To under floor fuel line
  E | : To fuel tank
  G | : Disconnection

- Hold the sides of quick connector, push in tabs (F) and pull out fuel tube.
- If quick connector sticks to tube (A) of main fuel level sensor unit, fuel filter and fuel pump assembly push and pull quick connector several times until they start to move. Then disconnect them by pulling.

■ CAUTION ■

- Quick connector can be disconnected when the tabs are completely depressed. Never twist it more than necessary.
- Never use any tools to disconnect quick connector.
- Keep resin tube (C) away from heat. Be especially careful when welding near the resin tube.
- Prevent acid liquid such as battery electrolyte, etc. from getting on resin tube.
- Never bend or twist resin tube during installation and disconnection.
- Never remove the remaining quick connector retainer (2) on hard tube (or the equivalent) except when resin tube or quick connector retainer is replaced.
- When resin tube or fuel level sensor unit is replaced, also replace quick connector retainer with a new one. Replace same color quick connector retainer as before replacing.

  | : Vehicle front

  Quick connector color
  Fuel return side (A) | : Translucent
  Fuel feed side (B) | : White

- To keep the connecting portion clean and to avoid damage and foreign materials, cover them completely with plastic bags (A) or something similar.

8.Remove main fuel level sensor unit, fuel filter and fuel pump assembly, and sub fuel level sensor unit as follows:
■ CAUTION ■

- Never impact or drop them when handling components.

(1)Removal of main fuel level sensor unit, fuel filter and fuel pump assembly:

1)Remove retainer.

2)Raise main fuel level sensor unit (A).
■ CAUTION ■

- Because fuel tubes and harness are still attached, cover the opening of fuel tank to protect the tubes and harness from damage before removing main fuel level sensor unit.
- Never bend float arm during removal.

3)Disengage the engagement (B) by lifting the pawl (A) of the fuel filter and fuel pump to slide it into the front side of the vehicle for removal.

| : Vehicle front

4)Pull out fuel filter and fuel pump from fuel tank.
■ CAUTION ■

- Because fuel tubes (transfer) are still attached, cover the opening of fuel tank to protect the tubes from damage before removing fuel filter and fuel pump.
- Because remaining fuel spills from fuel filter and fuel pump, use a shop cloth for holding the lower part. Never tilt fuel filter and fuel pump during the removal.

5)Disconnect fuel tubes (transfer) from fuel filter and fuel pump.

1 | : Fuel feed tube (transfer)
2 | : Fuel feed tube (transfer)
3 | : Fuel return tube (transfer)

- To disconnect quick connectors, refer to step 7 “REMOVAL”.

(2)Removal of sub fuel level sensor unit:

1)Remove retainer.

2)Raise and release sub fuel level sensor unit to remove.

INSTALLATION
Note the following, and install in the reverse order of removal.
Fuel Feed Tube (Transfer) and Fuel Return Tube (Transfer)

- Connect quick connectors of fuel tube as follows:

  1 | : Fuel feed tube (transfer)
  2 | : Fuel feed tube (transfer)
  3 | : Fuel return tube (transfer)

- Check the connection for damage or any foreign materials.

- Align the connector with the tube, and then insert the connector straight into the tube until a click sound is heard.

- After connecting, check that the connection is secure by following method.

- Visually check that the two retainer tabs are connected to the connector.
- Pull (A) the tube and the connector to check they are securely connected.

Main Fuel Level Sensor Unit, Fuel Filter and Fuel Pump Assembly, and Sub Fuel Level Sensor Unit

1.Install fuel filter and fuel pump.

- After installing fuel filter and fuel pump, check the following items.

■ CAUTION ■

- Move fuel filter and fuel pump back and forth and around to check that it is no half-fit.
- Check that the fuel feed tubes (transfer) and fuel return tube (transfer) never interfere with the fuel shutter in the fuel tank. If there is (a possibility of) interference, remove fuel filter and fuel pump first, and reinstall it by turning the connection of quick connector in the direction that interference does not occur.

2.Install main fuel level sensor unit (A) and sub fuel level sensor unit.
■ CAUTION ■

- Because fuel tubes and harness are attached, cover the opening of fuel tank to protect the tubes and harness from damage before installing main fuel level sensor unit.
- Never bend float arm during installation.

- Face main and sub fuel level sensor units as shown in the figure, and install them with the knock pin (C) on back aligned with pin hole on fuel tank.

  A | : Left side
  B | : Right side
  | : Vehicle front

- Tighten retainer mounting bolts evenly.
  ■ CAUTION ■
  Only use genuine parts for retainer mounting bolts.

3.Connect quick connectors as follows:

(1)Check the installation position of fuel feed tube and fuel return tube.

| : Vehicle front

Quick connector color
Fuel return side (A) | : Translucent
Fuel feed side (B) | : White

(2)Check the connection for damage or any foreign material

(3)Install the fuel feed tube (4) and fuel return tube (1), aligning matching marks marked when removing.

2 | : Harness connector
3 | : Harness connector
| : Vehicle front

■ CAUTION ■
Be careful not to install a wrong tube because the shape of the quick connectors of each tube is identical.
NOTE：
Install the tube with larger diameter on the fuel feed side.

- Align the quick connector with the tube, and then insert the quick connector straight into the tube until a click sound is heard.
- After connecting, check that the connection is secure by following method.

- Pull (A) the tube and the connector to check they are securely connected.
- Visually confirm that the two retainer tabs are connected to the quick connector.

Inspection Hole Cover

1.Install inspection hole cover (1) with front mark (A) facing front of vehicle (Both RH and LH).

| : Vehicle front

2.Lock clips (2) by turning 90 degrees (b) counterclockwise.