Nissan Teana J32. Manual — part 468
EC-410
< PREPARATION >
[VQ25DE, VQ35DE]
PREPARATION
PREPARATION
PREPARATION
Special Service Tools
INFOID:0000000003943273
Commercial Service Tools
INFOID:0000000003943274
Tool name
Description
Fuel tube adapter
Measuring fuel pressure
PBIB3043E
Tool name
Description
Quick connector re-
lease
Removes fuel tube quick connectors in engine
room
Socket wrench
Removes and installing engine coolant tempera-
ture sensor
Oxygen sensor thread
cleaner
Reconditions the exhaust system threads before
installing a new oxygen sensor. Use with anti-
seize lubricant shown below.
a: 18 mm diameter with pitch 1.5 mm for Zirco-
nia Oxygen Sensor
b: 12 mm diameter with pitch 1.25 mm for Tita-
nia Oxygen Sensor
Anti-seize lubricant
i.e.: (Permatex
TM
133AR or equivalent
meeting MIL specifica-
tion MIL-A-907)
Lubricates oxygen sensor thread cleaning tool
when reconditioning exhaust system threads.
PBIC0198E
S-NT705
AEM488
S-NT779
FUEL PRESSURE
EC-411
< ON-VEHICLE MAINTENANCE >
[VQ25DE, VQ35DE]
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ON-VEHICLE MAINTENANCE
FUEL PRESSURE
Inspection
INFOID:0000000003856884
FUEL PRESSURE RELEASE
With CONSULT-III
1.
Turn ignition switch ON.
2.
Perform “FUEL PRESSURE RELEASE” in “WORK SUPPORT” mode with CONSULT-III.
3.
Start engine.
4.
After engine stalls, crank it 2 or 3 times to release all fuel pressure.
5.
Turn ignition switch OFF.
Without CONSULT-III
1.
Remove fuel pump fuse located in IPDM E/R.
2.
Start engine.
3.
After engine stalls, crank it 2 or 3 times to release all fuel pressure.
4.
Turn ignition switch OFF.
5.
Reinstall fuel pump fuse after servicing fuel system.
FUEL PRESSURE CHECK
CAUTION:
Before disconnecting fuel line, release fuel pressure from fuel line to eliminate danger.
NOTE:
• Prepare pans or saucers under the disconnected fuel line because the fuel may spill out. The fuel
pressure cannot be completely released because J32 models do not have fuel return system.
• Be careful not to scratch or get the fuel hose connection area dirty when servicing, so that the quick
connector o-ring maintains seal ability.
1.
Release fuel pressure to zero.
2.
Remove fuel hose using Quick Connector Release.
• Do not twist or kink fuel hose because it is plastic hose.
• Keep fuel hose connections clean.
3.
Install Fuel pressure adapter (B) and Fuel pressure gauge (A)
as shown in figure.
• Do not distort or bend fuel rail tube when installing fuel pres-
sure gauge adapter.
• When reconnecting fuel hose, check the original fuel hose for
damage and abnormality.
4.
Turn ignition switch ON (reactivate fuel pump) and check for fuel
leakage.
5.
Start engine and check for fuel leakage.
6.
Read the indication of fuel pressure gauge kit.
• During fuel pressure check, check for fuel leakage from fuel
connection every 3 minutes.
7.
If result is unsatisfactory, go to next step.
8.
Check the following.
• Fuel hoses and fuel tubes for clogging
• Fuel filter for clogging
• Fuel pump
• Fuel pressure regulator for clogging
9.
If OK, replace fuel pressure regulator.
If NG, repair or replace malfunctioning part.
At idling
: Approximately 350 kPa (3.5 bar, 3.57 kg/cm
2
, 51 psi)
JMBIA1392ZZ
EC-412
< ON-VEHICLE MAINTENANCE >
[VQ25DE, VQ35DE]
FUEL PRESSURE
10. Before disconnecting Fuel Pressure Gauge and Fuel Pressure Adapter, release fuel pressure to zero.
EVAPORATIVE EMISSION SYSTEM
EC-413
< ON-VEHICLE REPAIR >
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EVAPORATIVE EMISSION SYSTEM
Inspection
INFOID:0000000003932067
1.
Visually inspect EVAP vapor lines for improper attachment and for cracks, damage, loose connections,
chafing and deterioration.
2.
Check EVAP canister as per the following:
a.
Block port (B). Orally blow air through port (A).
Check that air flows freely through port (C).
b.
Block port (A). Orally blow air through port (B).
Check that air flows freely through port (C).
3.
Inspect fuel tank filler cap vacuum relief valve for clogging, stick-
ing, etc.
a.
Wipe clean valve housing.
b.
Check valve opening pressure and vacuum.
c.
If out of specification, replace fuel filler cap as an assembly.
PBIB0663E
SEF989X
Pressure:
15.3 - 20.0 kPa (0.153 - 0.200 bar, 0.156 - 0.204 kg/
cm
2
, 2.22 - 2.90 psi)
Vacuum:
–6.0 to –3.4 kPa (–0.06 bar to –-0.034bar, –0.061 to –
0.035 kg/cm
2
, –0.87 to –0.49 psi)
SEF943S
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