2004 INFINITI FX35 tank

FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY
FL-7
C
D
E
F
G
H
I
J
K
L
MA
FL
Revision: 2004 November 2004 FX35/FX45
Main and Sub Fuel Level Sensor Unit

When installing fuel hose connector insert them fully until a click
sound of full stopper engagement is heard.

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

Install retainer so that its notch becomes parallel with the notch
on fuel tank.

Tighten retainer mounting bolts evenly.
Quick Connector
Connect quick connector as follows:
1. Check the connection for damage or any foreign materials.
2. Align the connector with the tube, then insert the connector straight into the tube until a click sound is
heard.
3. After connecting, make sure that the connection is secure by following method.

Pull the tube and the connector to make sure they are
securely connected.

Visually confirm that the two retainer tabs are connected to
the connector.
INSPECTION AFTER INSTALLATION
Use the following procedure to check for fuel leaks.
PBIC1579E
PBIC1065E
PBIC1652E
PBIC1653E

FL-10
FUEL TANK
Revision: 2004 November 2004 FX35/FX45
FUEL TANKPFP:17202
Removal and InstallationABS005Z1
REMOVAL
WARNING:
Be sure to read “General Precautions” when working on the fuel system. Refer to FL-3, "
General Pre-
cautions" .

Drain fuel from fuel tank if necessary. Refer to FL-4, "REMOVAL" .

Perform work on level place.
1. Perform steps 2 to 7 of “REMOVAL” in “ FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP
ASSEMBLY” on main and sub fuel level sensor units. Refer to FL-4, "
REMOVAL" .
2. Remove tunnel stay. Refer to RSU-5, "
REAR SUSPENSION ASSEMBLY" .
3. Remove exhaust front tube, center muffler and main muffler. Refer to EX-3, "
EXHAUST SYSTEM" .
4. Remove insulator.
5. Remove propeller shaft. Refer to PR-6, "
REAR PROPELLER SHAFT" .
6. Remove parking rear brake cables. Refer to PB-3, "
PARKING BRAKE CONTROL" .
7. Remove rear suspension assembly. Refer to RSU-5, "
REAR SUSPENSION ASSEMBLY" .
8. Remove fuel tank protector.
1. Grommet 2. Fuel filler cap 3. Clip
4. Fuel filler tube protector 5. Fuel tank mounting band 6. Fuel tank protector
7. Insulator 8. Fuel tank 9. Vent tube
10. Vent hose 11. EVAP hose 12. Vent hose
13. Fuel filler hose 14. Fuel filler tube
PBIC1580E

FUEL TANK
FL-11
C
D
E
F
G
H
I
J
K
L
MA
FL
Revision: 2004 November 2004 FX35/FX45
9. Disconnect fuel filler hose, vent hose and EVAP hoses at fuel
tank side.
10. Remove fuel tank mounting band bolts while supporting fuel
tank.
11. Remove fuel tank.
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 clamps of fuel filler hose so that the remaining length of screw thread becomes 8 to12 mm (0.31
to 0.47 in) on tank side and 5.7 to 9.7 mm (0.224 to 0.382 in) on fuel filler tube side.

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 check for fuel leaks at the fuel system tube and hose connections.

After removing/installing rear suspension assembly, make sure to adjust wheel alignment and then, adjust
neutral position of steering angle sensor. Refer to RSU-5, "
Wheel Alignment Inspection" and BRC-6,
"Adjustment of Steering Angle Sensor Neutral Position" .
PBIC1581E
PBIC0878E
Fuel filler hose : 35 mm (1.38 in)
The other hoses : 25 mm (0.98 in)

FL-12
SERVICE DATA AND SPECIFICATIONS (SDS)
Revision: 2004 November 2004 FX35/FX45
SERVICE DATA AND SPECIFICATIONS (SDS)PFP:00030
Standard and LimitABS005Z2
Fuel tank capacity
Approx. 90 (23-3/4 US gal, 19-3/4 Imp gal)

PRECAUTIONS
GI-5
C
D
E
F
G
H
I
J
K
L
MB
GI
Revision: 2004 November 2004 FX35/FX45

Before starting repairs which do not require battery power:
Turn off ignition switch.
Disconnect the negative battery terminal.

If the battery terminals are disconnected, recorded memory of
radio and each control unit is erased.

To prevent serious burns:
Avoid contact with hot metal parts.
Do not remove the radiator cap when the engine is hot.

Dispose of drained oil or the solvent used for cleaning parts in
an appropriate manner.

Do not attempt to top off the fuel tank after the fuel pump nozzle
shuts off automatically.
Continued refueling may cause fuel overflow, resulting in fuel
spray and possibly a fire.

Clean all disassembled parts in the designated liquid or solvent
prior to inspection or assembly.

Replace oil seals, gaskets, packings, O-rings, locking washers, cotter pins, self-locking nuts, etc. with new
ones.

Replace inner and outer races of tapered roller bearings and needle bearings as a set.

Arrange the disassembled parts in accordance with their assembled locations and sequence.

Do not touch the terminals of electrical components which use microcomputers (such as ECM).
Static electricity may damage internal electronic components.

After disconnecting vacuum or air hoses, attach a tag to indicate the proper connection.

Use only the fluids and lubricants specified in this manual.

Use approved bonding agent, sealants or their equivalents when required.

Use hand tools, power tools (disassembly only) and recom-
mended special tools where specified for safe and efficient ser-
vice repairs.

When repairing the fuel, oil, water, vacuum or exhaust systems,
check all affected lines for leaks.

Before servicing the vehicle:
Protect fenders, upholstery and carpeting with appropriate cov-
ers.
Take caution that keys, buckles or buttons do not scratch paint.
SEF289H
SGI233
PBIC0190E
SGI234

GI-6
PRECAUTIONS
Revision: 2004 November 2004 FX35/FX45
WARNING:
To prevent ECM from storing the diagnostic trouble codes, do not carelessly disconnect the harness
connectors which are related to the engine control system and TCM (transmission control module)
system. The connectors should be disconnected only when working according to the WORK FLOW of
TROUBLE DIAGNOSES in EC and AT sections.
Precautions for Three Way CatalystAAS000EZ
If a large amount of unburned fuel flows into the catalyst, the catalyst temperature will be excessively high. To
prevent this, follow the instructions.

Use unleaded gasoline only. Leaded gasoline will seriously damage the three way catalyst.

When checking for ignition spark or measuring engine compression, make tests quickly and only when
necessary.

Do not run engine when the fuel tank level is low, otherwise the engine may misfire, causing damage to
the catalyst.
Do not place the vehicle on flammable material. Keep flammable material off the exhaust pipe and the three
way catalyst.
Precautions for Fuel (Unleaded Premium Gasoline Recommended)AAS000F0
Use unleaded regular gasoline with an octane rating of at least 87 AKI (Anti-Knock Index) number (Research
octane number 91).
For improved vehicle performance, NISSAN/INFINITI recommend the use of unleaded premium gasoline with
an octane rating of at least 91 AKI number (Research octane number 96).
CAUTION:
Do not use leaded gasoline. Using leaded gasoline will damage the three way catalyst. Using a fuel
other than that specified could adversely affect the emission control devices and systems, and could
also affect the warranty coverage validity.

PRECAUTIONS
GI-7
C
D
E
F
G
H
I
J
K
L
MB
GI
Revision: 2004 November 2004 FX35/FX45
Precautions for Fuel (Unleaded Premium Gasoline Required)AAS000GS
Use unleaded premium gasoline with an octane rating of at least 91 AKI (Anti-Knock Index) number (Research
octane number 96).
If unleaded premium gasoline is not available, unleaded regular gasoline with an octane rating of at least 87
AKI number (Research octane number 91) can be used, but only under the following precautions:

have the fuel tank filled only partially with unleaded regular gasoline, and fill up with unleaded premium
gasoline as soon as possible.

avoid full throttle driving and abrupt acceleration.
However, for maximum vehicle performance, the use of unleaded premium gasoline is recommended.
CAUTION:
Do not use leaded gasoline. Using leaded gasoline will damage the three way catalyst. Using a fuel
other than that specified could adversely affect the emission control devices and systems, and could
also affect the warranty coverage validity.
Precautions for Multiport Fuel Injection System or Engine Control SystemAAS000F1

Before connecting or disconnecting any harness connector for
the multiport fuel injection system or ECM:
Turn ignition switch to “OFF” position.
Disconnect negative battery terminal.
Otherwise, there may be damage to ECM.

Before disconnecting pressurized fuel line from fuel pump to
injectors, be sure to release fuel pressure.

Be careful not to jar components such as ECM and mass air
flow sensor.
Precautions for HosesAAS000F2
HOSE REMOVAL AND INSTALLATION

To prevent damage to rubber hose, do not pry off rubber hose
with tapered tool or screwdriver.

To reinstall the rubber hose securely, make sure that hose inser-
tion length and orientation is correct. (If tube is equipped with
hose stopper, insert rubber hose into tube until it butts up
against hose stopper.)
SGI787
SMA019D
SMA020D

IDX-4
ALPHABETICAL INDEX
Electric throttle control actuator ........ EC-415, EC-417,
EC-1077
, EC-1079
Electric throttle control actuator (VK45DE) ..... EM-174
Electric throttle control actuator (VQ35DE) ....... EM-19
Electrical load signal circuit .............. EC-614, EC-1292
Electrical unit ..................................................... PG-77
Electrical units location ...................................... PG-70
Electronic ignition (EI) system ............. EC-34, EC-681
Engine control module (ECM) .......... EC-401, EC-1057
Engine control system diagram and chart ........ EC-29,
EC-676
Engine coolant temperature sensor (ECTS) ... EC-185,
EC-197
, EC-842, EC-855
Engine coolant(VK45DE) .................................. CO-36
Engine coolant(VQ35DE) ................................. CO-11
Engine oil filter replacement ............................. MA-25
Engine oil filter replacement(VQ35DE) ............. MA-18
Engine oil precautions .......................................... GI-8
Engine oil replacement(VQ35DE) ..................... MA-17
Engine oil(VK45DE) ........................................... LU-25
Engine oil(VQ35DE) ............................................ LU-7
Engine removal(VK45DE) ............................... EM-236
Engine removal(VQ35DE) .............................. EM-110
Engine room cover(VK45DE) ......................... EM-168
ETC1 - Wiring diagram .................... EC-418, EC-1080
ETC2 - Wiring diagram .................... EC-425, EC-1087
ETC3 - Wiring diagram .................... EC-429, EC-1091
EVAP canister .................................. EC-646, EC-1323
EVAP canister purge volume control solenoid valve ....
EC-335
, EC-990, EC-1160
EVAP canister vent control valve ...... EC-342, EC-502,
EC-997
, EC-1168
EVAP control system (small leak) diagnosis .. EC-326,
EC-366
, EC-981, EC-1022
EVAP control system pressure sensor ........... EC-349,
EC-352
, EC-358, EC-1004, EC-1007, EC-1014
EVAP control system purge flow monitoring diagnosis
EC-321
, EC-976
EVAP vapor lines inspection ................. MA-20, MA-27
Evaporative emission (EVAP) system ............ EC-643,
EC-1320
Evaporator ..................................................... ATC-155
Exhaust manifold(VK45DE) ............................ EM-178
Exhaust manifold(VQ35DE) .............................. EM-26
Exhaust system ................................................... EX-3
Exhaust system inspection ..................... EX-3, MA-28
Expansion valve ............................................. ATC-156
F
F/FOG - Wiring diagram ..................................... LT-79
F/PUMP - Wiring diagram ................ EC-604, EC-1281
Final drive removal and installation .. FFD-10, RFD-11
Floor trim ............................................................. EI-40
Flow charts ......................................................... GI-27
Fluid temperature sensor (A/T) ........................ AT-139
Fluorescent leak detector .............................. ATC-157
Fog lamp, front .................................................... LT-77
Front axle ............................................. FAX-4, FAX-10
Front brake solenoid valve ................. AT-156, AT-158
Front bumper ...................................................... EI-14
Front door ............................. BL-148, BL-152, GW-76
Front fog lamp .................................................... LT-77
Front passenger air bag .................................. SRS-40
Front seat belt ...................................................... SB-4
Front seat belt pre-tensioner ..... SB-2, SRS-3, SRS-47
Front side air bag ............................................ SRS-41
Front suspension .............................................. FSU-6
Front washer ...................................................... WW-4
Front wiper ......................................................... WW-4
FTTS - Wiring diagram ...... EC-275, EC-280, EC-933,
EC-938
Fuel cut control (at no load high engine speed) EC-35,
EC-683
Fuel filter replacement ......................................... FL-4
Fuel gauge ............................................................ DI-4
Fuel injector and fuel tube(VK45DE) .............. EM-188
Fuel injector and fuel tube(VQ35DE) ................ EM-45
Fuel level sensor EC-384, EC-386, EC-388, EC-1040,
EC-1042
, EC-1044
Fuel line inspection .................................. FL-3, MA-24
Fuel line inspection(VQ35DE) .......................... MA-17
Fuel precautions .......................................... GI-6, GI-7
Fuel pressure check ........................... EC-51, EC-700
Fuel pressure release ......................... EC-51, EC-700
Fuel pump ....................................... EC-603, EC-1280
Fuel pump and gauge .......................................... FL-4
Fuel system ......................................................... FL-3
Fuel tank ............................................................ FL-10
Fuel tank temperature sensor .......... EC-273, EC-279,
EC-931
, EC-937
Fuel tank vacuum relief valve ......... EC-646, EC-1323
FUELB1 - Wiring diagram .. EC-258, EC-267, EC-916,
EC-925
FUELB2 - Wiring diagram .. EC-259, EC-268, EC-917,
EC-926
Fuse .................................................................. PG-17
Fuse and fusible link box .................................. PG-84
Fusible link ........................................................ PG-17
G
Gauges ................................................................. DI-4
Glass ...................................... GW-11, GW-76, GW-80
Glove box lamp ................................... LT-154, LT-197
GPS antenna ..................................................... AV-89
Grille - See Exterior ............................................ EI-23
Ground distribution ........................................... PG-31
H
H/AIM - Wiring diagram ..................................... LT-73
H/LAMP - Wiring diagram .................................. LT-11
Harness connector ............................................ PG-74
Harness layout .................................................. PG-46
Hazard warning lamp ......................................... LT-89
Headlamp aiming control ................................... LT-73
Headlamp leveler - See Headlamp aiming control ........