2007 NISSAN 350Z check engine

FL-1
FUEL SYSTEM
B ENGINE
CONTENTS
C
D
E
F
G
H
I
J
K
L
M
SECTION FL
A
FL
Revision: 2006 November2007 350Z
FUEL SYSTEM
PRECAUTIONS .......................................................... 2
Precautions for Battery Service ................................ 2
FUEL SYSTEM ........................................................... 3
Checking Fuel Lines ................................................. 3
General Precautions ................................................ 3
FUEL LEVEL SENSOR UNIT, FUEL FILTER AND
FUEL PUMP ASSEMBLY ........................................... 4
Removal and Installation .......................................... 4
REMOVAL ............................................................. 4
INSTALLATION ..................................................... 7INSPECTION AFTER INSTALLATION .................. 8
Disassembly and Assembly ...................................... 8
DISASSEMBLY ..................................................... 8
ASSEMBLY ........................................................... 9
FUEL TANK .............................................................. 10
Removal and Installation ........................................ 10
REMOVAL ........................................................... 10
INSTALLATION ................................................... 11
INSPECTION AFTER INSTALLATION ................ 11
SERVICE DATA AND SPECIFICATIONS (SDS) ...... 12
Standard and Limit .................................................. 12
Tightening Torque ................................................... 12

FUEL SYSTEM
FL-3
C
D
E
F
G
H
I
J
K
L
MA
FL
Revision: 2006 November2007 350Z
FUEL SYSTEMPFP:17503
Checking Fuel LinesNBS000IX
Inspect fuel lines, fuel filler cap and fuel tank for improper attach-
ment, leaks, cracks, damage, loose connections, chafing or deterio-
ration.
If necessary, repair or replace damaged parts.
General PrecautionsNBS000IY
WARNING:
When replacing fuel line parts, be sure to observe the following.

Put a “CAUTION: FLAMMABLE” sign in the workshop.

Be sure to work in a well ventilated area and furnish workshop with a CO2 fire extinguisher.

Do not smoke while servicing fuel system. Keep open flames and sparks away from the work area.

Put drained fuel in an explosion-proof container and put the lid on securely. Keep the container in
safe area.
CAUTION:

Use gasoline required by the regulations for octane number. Refer to GI-5, "Precautions for Fuel
(Unleaded Premium Gasoline Required)" .

Before removing fuel line parts, perform the following procedures:
–Release fuel pressure from the fuel lines. Refer to EC-79, "FUEL PRESSURE RELEASE" .
–Disconnect negative battery terminal.

Always replace O-rings and clamps with new ones.

Do not kink or twist tubes when they are being installed.

Do not tighten hose clamps excessively to avoid damaging hoses.

After connecting fuel tube quick connectors, make sure
quick connectors are secure.
Ensure that connector and resin tube do not contact any
adjacent parts.

After installing tubes, make sure there is no fuel leakage at
connections in the following steps.
–Apply fuel pressure to fuel lines with turning ignition switch
“ON” (with engine stopped). Then check for fuel leaks at
connections.
–Start engine and rev it up and check for fuel leaks at con-
nections.

Use only a genuine NISSAN fuel filler cap as a replacement.
If an incorrect fuel filler cap is used, the “MIL” may come
on.

For servicing “Evaporative Emission System” parts, refer to
EC-33, "
EVAPORATIVE EMISSION SYSTEM" .
SMA803A
SBIA0504E

FL-8
FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY
Revision: 2006 November2007 350Z

Pull the tube and the connector to make sure they are
securely connected.
Inspection Hole Cover
1. Install inspection hole cover with direction mark (arrow) facing front of vehicle.
2. Lock clips by turning counter-clockwise.
INSPECTION AFTER INSTALLATION
Use the following procedure to check for fuel leaks.
1. Turn ignition switch “ON” (with engine stopped), then check connections for leaks by applying fuel pres-
sure to fuel piping.
2. Start engine and rev it up and make sure there are no fuel leaks at the fuel system connections.
Disassembly and AssemblyNBS000J0
CAUTION:
Sub fuel level sensor unit cannot be disassembled and should be replaced as a unit.
DISASSEMBLY
Remove fuel level sensor unit as follows.
1. Disconnect harness connector.

Hold connector by fingers and pull it out, because there is no
stopper release tab.
PBIC1653E
1. Fuel level sensor unit 2. Fuel filter and fuel pump assembly
PBIC1081E
PBIC1078E

FUEL TANK
FL-11
C
D
E
F
G
H
I
J
K
L
MA
FL
Revision: 2006 November2007 350Z
8. Disconnect fuel filler hose, vent hose and EVAP hoses at fuel
tank side.
9. Remove fuel tank mounting band bolts while supporting fuel
tank.
10. Supporting with hands, descend transmission jack carefully, and remove fuel tank.
CAUTION:

Make sure that all connection points have been disconnected.

Confirm there is no interference with vehicle.
11. Remove fuel filler tube, if necessary.
INSTALLATION
Note the following, and install in the reverse order of removal.

Surely clamp fuel hoses and insert hose to the length below.

Be sure hose clamp is not placed on swelled area of fuel tube.

Tighten fuel hose clamp so that the distance between its lugs becomes to the following.

To connect quick connector, refer to FL-7, "Quick Connector" .
INSPECTION AFTER INSTALLATION
Use the following procedure to check for fuel leaks.
1. Turn ignition switch “ON” (with engine stopped), and check connections for leakage by applying fuel pres-
sure to fuel piping.
2. Start engine and rev it up and make sure there are no fuel leaks at the fuel system connections.
PBIC1674E
PBIC0878E
Fuel filler hose : 35 mm (1.38 in)
The other hoses : 25 mm (0.98 in)
Fuel tank side : 8 - 12 mm (0.31 - 0.47 in)
Fuel filler tube side : 5.7 - 9.7 mm (0.224 - 0.382 in)