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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
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FL-2
PRECAUTIONS
Revision: 2006 November2007 350Z
PRECAUTIONSPFP:00001
Precautions for Battery ServiceNBS000IW
Before disconnecting the battery, lower both the driver and passenger windows. This will prevent any interfer-
ence between the window edge and the vehicle when the door is opened/closed. During normal operation, the
window slightly raises and lowers automatically to prevent any window to vehicle interference. The automatic
window function will not work with the battery disconnected.
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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
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FL-6
FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY
Revision: 2006 November2007 350Z
CAUTION:
Quick connector can be disconnected when the tabs
are completely depressed. Do not twist it more than
necessary.
Do not use any tools to disconnect quick connector.
Keep resin tube 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.
Do not bend or twist resin tube during installation and
disconnection.
Do not remove the remaining retainer on hard tube (or
equivalent) except when resin tube or retainer is
replaced.
When resin tube or hard tube (or equivalent) is
replaced, also replace retainer with new one.
Replace same color retainer as before replacing.
To keep the connecting portion clean and to avoid
damage and foreign materials, cover them completely
with plastic bags 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:
Do not bend float arm during removal.
Avoid polluting the inside by residue fuel. Draw out with avoiding inclination by supporting with
a cloth.
Avoid impacts such as falling when handling components.
a. Removal of main fuel level sensor unit, fuel filter and fuel pump
assembly:
i. Remove retainer.
ii. Raise main fuel level sensor unit, fuel filter and fuel pump
assembly, and using snap ring pliers, remove fuel hose connec-
tor.
CAUTION:
Be careful not to damage fuel hose connector by expanding
them excessively.
b. Removal of sub fuel level sensor unit:
i. Remove retainer.
ii. Raise and release sub fuel level sensor unit to remove.Retainer color: White
SBIA0504E
PBIC0163E
PBIC1578E