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FL-1
ENGINE
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SECTION FL
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CONTENTS
FUEL SYSTEM
PRECAUTION ................ ...............................2
PRECAUTIONS .............................................. .....2
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
2
General Precaution ...................................................2
PREPARATION ............................................4
PREPARATION .............................................. .....4
Special Service Tool ........................................... ......4
Commercial Service Tool ..........................................4
PERIODIC MAINTENANCE ..........................5
FUEL SYSTEM ............................................... .....5
Inspection ............................................................ ......5
Quick Connector .......................................................5
REMOVAL AND INSTALLATION ................6
FUEL LEVEL SENSOR UNIT, FUEL FILTER
AND FUEL PUMP ASSEMBLY ..................... .....
6
Exploded View .................................................... ......6
Removal and Installation ...........................................6
Inspection ............................................................ ......9
FUEL TANK ........................................................10
Exploded View .................................................... ....10
Removal and Installation .........................................10
Inspection ............................................................ ....13
EVAP CANISTER ..............................................14
Exploded View .........................................................14
Removal and Installation .........................................14
Inspection ................................................................15
EVAP CANISTER FILTER ................................16
Exploded View .........................................................16
Removal and Installation .........................................16
EVAP CANISTER VENT CONTROL VALVE ...17
Exploded View .........................................................17
Removal and Installation .........................................17
EVAP CONTROL SYSTEM PRESSURE SEN-
SOR ...................................................................
18
Exploded View ..................................................... ....18
Removal and Installation .........................................18
UNIT DISASSEMBLY AND ASSEMBLY ....19
FUEL LEVEL SENSOR UNIT ...........................19
Disassembly and Assembly ................................. ....19
SERVICE DATA AND SPECIFICATIONS
(SDS) ............... .............................................
21
SERVICE DATA AND SPECIFICATIONS
(SDS) .................................................................
21
Fuel Tank ............................................................. ....21
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FL-2
< PRECAUTION >
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000009951691
The Supplemental Restraint System such as “A IR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severi ty of injury to the driver and front passenger for certain
types of collision. Information necessary to service the system safely is included in the SR and SB section of
this Service Manual.
WARNING:
• To avoid rendering the SRS inopera tive, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISS AN/INFINITI dealer.
• Improper maintenance, including in correct removal and installation of the SRS, can lead to personal
injury caused by unintent ional activation of the system. For re moval of Spiral Cable and Air Bag
Module, see the SR section.
• Do not use electrical test equipmen t on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harn esses can be identified by yellow and/or orange harnesses or har-
ness connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
• When working near the Airbag Diagnosis Sensor Unit or other Airbag System sensors with the Igni-
tion ON or engine running, DO NOT use air or electri c power tools or strike near the sensor(s) with a
hammer. Heavy vibration could activate the sensor( s) and deploy the air bag(s), possibly causing
serious injury.
• When using air or electric power tools or hammers , always switch the Ignition OFF, disconnect the
battery and wait at least three minutes before performing any service.
General PrecautionINFOID:0000000009460597
WARNING:
When replacing fuel line parts, be sure to observe the following.
• Put a “CAUTION: FLAMMABLE” sign in the work area.
• Be sure to work in a well ventilated area and have a CO
2 fire extinguisher.
• Do not smoke while working on the fuel system. Keep open flames and sparks away from the work
area.
CAUTION:
• Before removing fuel line parts, carry out the following procedures:
- Put drained fuel in an explosi on-proof container and put the lid on securely. Keep the container in
safe area.
- Release fuel pressure from the fuel lines. Refer to EC-182, "Work Procedure"
(QR25DE), EC-687,
"Work Procedure" (VQ35DE).
- Disconnect the battery ground cable.
• 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 excessi vely to avoid damaging hoses.
Tighten high-pressure rubber hose clamp so that clamp end
is 3 mm (0.12 in) from hose end.
Tightening torque specificati ons are the same for all rubber
hose clamps.
Ensure that screw does not contact adjacent parts.
MMA104A
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PRECAUTIONSFL-3
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• After connecting the fuel tu
be quick connectors, make sure
the quick connectors are secure.
Check that the connector and r esin tube do not contact any
adjacent parts.
- a) Apply fuel pressure to the fu el system by turning the igni-
tion switch to ON (without star ting the engine). Then check for
fuel leaks at the fuel tube connections.
- b) Start the engine and rev the engine, then check for fuel leaks at the fuel tube connections.
• After installing the tubes, run the engine and check for fuel
leaks at the connections.
• Use only a Genuine NISSAN fuel filler cap as a replacement. If
an incorrect fuel fi ller cap is used, the MIL may come on.
• For servicing “Evaporative Emi ssion System” parts, refer to
EC-62, "EVAPORATIVE EMISSI ON SYSTEM : System Descrip-
tion" (QR25DE for California), EC-62, "EVAPORATIVE EMIS-
SION SYSTEM : System Description" (QR25DE except for
California), EC-580, "EVAPORATIVE EM ISSION SYSTEM : Sys-
tem Description" (VQ35DE).
• For servicing “On Board Refuel ing Vapor Recovery (ORVR)”
parts, refer to EC-39, "On Board Refueling Vapor Recovery
(ORVR)" (QR25DE for California), EC-39, "On Board Refueling
Vapor Recovery (ORVR)" (QR25DE except for California), EC-
564, "On Board Refueling Vapor Recovery (ORVR)" (VQ35DE).PBIC0199E
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FL-4
< PREPARATION >
PREPARATION
PREPARATION
PREPARATION
Special Service ToolINFOID:0000000009460598
The actual shapes of the tools may differ from those illustrated here.
Commercial Service ToolINFOID:0000000009460599
Tool number
(TechMate No.)
Tool name Description
KV101207S0
(—)
Unified fuel lock ring wrench
Removing and installing fuel tank lock ring
KV991J0090
(J-46214)
Fuel tank lock ring wrench
JPBIA6384ZZ
LBIA0353E
Tool name Description
Power tool Loosening nuts, screws and bolts
PIIB1407E
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FUEL SYSTEMFL-5
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PERIODIC MAINTENANCE
FUEL SYSTEM
InspectionINFOID:0000000009460600
Inspect fuel lines, fuel filler cap and fuel tank for improper attach-
ment, leaks, cracks, damage, loos e connections, chafing or deterio-
ration.
If necessary, repair or replace damaged parts.
Quick ConnectorINFOID:0000000009460601
CAUTION:
• After connecting fuel tube qu ick connectors, make sure quick
connectors are secure.
• Ensure that connector and resin tube do not contact any adja-
cent parts.
SMA803A
SBIA0504E
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FL-6
< REMOVAL AND INSTALLATION >
FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY
REMOVAL AND INSTALLATION
FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY
Exploded ViewINFOID:0000000009460602
Removal and InstallationINFOID:0000000009460603
REMOVAL
WARNING:
Read “General Precautions” before wo rking on the fuel system. Refer to FL-2, "General Precaution"
.
1. Disconnect the battery negative terminal. Refer to PG-73, "Removal and Installation (Battery)"
.
2. Unscrew the fuel filler cap to release the pressure inside the fuel tank.
3. Release the fuel pressure from the fuel lines. Refer to EC-182, "Work Procedure"
(QR25DE), EC-182,
"Work Procedure" (VQ35DE).
4. Remove the rear seat cushion. Refer to SE-36, "Removal and Installation - Seat Assembly"
.
5. Turn the four retainers (A) 90 ° in a clockwise direction and
remove the fuel pump inspection hole cover.
1. Lock ring 2. Fuel level sensor unit, fuel filter and
fuel pump assembly3. O-ring
4. Fuel Tank Front
AWBIA1345ZZ
:Front
ALBIA0892ZZ
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FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLYFL-7
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6. Disconnect the fuel level sensor unit, fuel filter and fuel pump
assembly harness connector (C), EVAP hose quick connector
(A), and the fuel feed hose quick connector (B) from the fuel
level sensor unit, fuel filter, and fuel pump assembly.
Remove the quick connector as follows:
• Hold the sides of the connector, push in tabs and pull out the
tube.
• If the connector and the tube are stuck together, push and pull several times until they start to move. Then disconnect them
by pulling.
CAUTION:
• The tube can be removed when the tabs are completely
depressed. Do not twist it more than necessary.
• Do not use any tools to remove the quick connector.
• Keep the resin tube away from heat. Be especially careful
when welding near the tube.
• Prevent acid liquid such as battery electroly te, etc. from getting on the resin tube.
• Do not bend or twist the tube during installation and removal.
• Only when the tube is replaced, remove the remaining retainer on the tube or fuel level sensor,
fuel filter, and fuel pump assembly.
• When the tube or fuel level sen sor, fuel filter, and fuel pump assembly is replaced, also replace
the retainer with a new one (green colored retainer).
• To keep the connecting portio n clean and to avoid dam-
age and foreign materials, cover them completely with
plastic bags or something similar.
7. Remove the lock ring using a socket drive handle and Tool (A). CAUTION:
Discard the lock ring if damaged or distorted.
:Front
AWBIA1308ZZ
SFE562A
PBIC0163E
Tool number : KV991J0090 (J-46214) (shown)
: KV101207S0 ( — )
:Front
ALBIA0895ZZ
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FL-8
< REMOVAL AND INSTALLATION >
FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY
8. Remove the fuel level sensor, fuel filter, and fuel pump assembly
(A). Remove and discard the O-ring.
CAUTION:
• Do not bend the float arm during removal.
• Discard the O-ring. Do not reuse O-ring.
INSPECTION AFTER REMOVAL
Inspect the fuel level sensor, fuel filter, and fuel pump assembly for any defects and foreign materials. Replace
as necessary.
INSTALLATION
Installation is in the reverse order of removal.
• Install the fuel level sensor, fuel filter, and fuel pump assembly with the fuel feed hose (B) facing the left side of the vehicle as shown.
Use a new O-ring.
CAUTION:
Do not reuse O-ring.
• Connect the quick connector as follows:
- Check the connection for damage or any foreign materials.
- Align the connector with the tube, then insert the connector straight into the tube until a click is heard.
• After the tube is connected, make sure the connection is secure by performing the following checks:
- Pull the tube and the connector to make sure they are securely
connected.
AWBIA1307ZZ
:Front
AWBIA1308ZZ
PBIC1653E
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