Nissan Pathfinder (2010 year). Manual — part 358
EC-956
< PREPARATION >
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PREPARATION
PREPARATION
PREPARATION
Special Service Tool
INFOID:0000000005257926
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Commercial Service Tool
INFOID:0000000005257927
Tool number
(Kent-Moore No.)
Tool name
Description
(J-44321)
Fuel pressure gauge
kit
Checks fuel pressure
(J-44321-6)
Fuel pressure adapter
Connects fuel pressure gauge to quick connector
type fuel lines.
(J-45488)
Quick connector re-
lease
Removes fuel tube quick connectors in engine
room.
LEC642
LBIA0376E
PBIC0198E
Tool name
(Kent-Moore No.)
Description
Leak detector
i.e.: (J-41416)
Locates the EVAP leak
EVAP service port
adapter
i.e.: (J-41413-OBD)
Applies positive pressure through EVAP service
port
S-NT703
S-NT704
2010 Pathfinder
PREPARATION
EC-957
< PREPARATION >
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Fuel filler cap adapter
i.e.: (MLR-8382)
Checks fuel tank vacuum relief valve opening
pressure
Socket wrench
Removes and installs engine coolant temperature
sensor
Oxygen sensor thread
cleaner
i.e.: (J-43897-18)
(J-43897-12)
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.
Tool name
(Kent-Moore No.)
Description
S-NT815
S-NT705
AEM488
S-NT779
2010 Pathfinder
EC-958
< ON-VEHICLE MAINTENANCE >
[VK56DE]
FUEL PRESSURE
ON-VEHICLE MAINTENANCE
FUEL PRESSURE
Fuel Pressure Check
INFOID:0000000005257928
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 (1) located in IPDM E/R (2).
2. Start engine.
3. After engine stalls, crank it 2 or 3 times to release all fuel pres-
sure.
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.
• 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.
• Use Fuel Pressure Gauge Kit [SST (J-44321)] and Fuel Pressure Adapter [SST (J-44321-6)] to check
fuel pressure.
• Never perform fuel pressure check with electrical system operating (i.e. lights, rear window defog-
ger, A/C, etc.). Fuel pressure gauge may indicate false readings due to varying engine loads and
changes in manifold vacuum.
NOTE:
Prepare pans or saucers under the disconnected fuel line because the fuel may spill out. The fuel pres-
sure cannot be completely released because R51 models do not have fuel return system.
1. Release fuel pressure to zero. Refer to "FUEL PRESSURE RELEASE".
2. Remove engine cover.
3. Remove fuel hose using Quick Connector Release [SST (J-45488)]. Refer to
.
• Never twist or kink fuel hose because it is plastic hose.
• Never remove fuel hose from quick connector.
• Keep fuel hose connections clean.
4. Install Fuel Pressure Adapter [SST (J-44321-6)] and Fuel Pres-
sure Gauge [SST (J-44321)] (1) as shown in the figure.
• Never 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.
5. Turn ignition switch ON (reactivate fuel pump), and check for
fuel leakage.
6. Start engine and check for fuel leakage.
7. Read the indication of fuel pressure gauge.
ALBIA0351ZZ
ALBIA0367ZZ
2010 Pathfinder
FUEL PRESSURE
EC-959
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• During fuel pressure check, check for fuel leakage from fuel connection every 3 minutes.
8. If result is unsatisfactory, go to next step.
9. Check the following.
• Fuel hoses and fuel tubes for clogging
• Fuel filter for clogging
• Fuel pump
• Fuel pressure regulator for clogging
If OK, replace fuel pressure regulator.
If NG, repair or replace malfunctioning part.
10. Before disconnecting Fuel Pressure Gauge and Fuel Pressure Adapter [SST (J-44321-6)], release fuel
pressure to zero. Refer to "FUEL PRESSURE RELEASE".
At idling: Approximately 350 kPa (3.57 kg/cm
2
, 51 psi)
2010 Pathfinder
EC-960
< ON-VEHICLE MAINTENANCE >
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EVAP LEAK CHECK
EVAP LEAK CHECK
How to Detect EVAP Leakage
INFOID:0000000005257929
CAUTION:
• Never use compressed air or a high pressure pump.
• Never exceed 4.12 kPa (0.042 kg/cm
2
, 0.6 psi) of pressure in EVAP system.
NOTE:
• Never start engine.
• Improper installation of EVAP service port adapter (commercial service tool) to the EVAP service port may
cause a leak.
WITH CONSULT-III
1. Attach the EVAP service port adapter (commercial service tool)
securely to the EVAP service port.
-
EVAP canister purge volume control solenoid valve (1)
-
: Vehicle front
2. Also attach the pressure pump and hose to the EVAP service
port adapter (commercial service tool).
3. Turn ignition switch ON.
4. Select the “EVAP SYSTEM CLOSE” of “WORK SUPPORT
MODE” with CONSULT-III.
5. Touch “START”. A bar graph (Pressure indicating display) will
appear on the screen.
6. Apply positive pressure to the EVAP system until the pressure
indicator reaches the middle of the bar graph.
7. Remove EVAP service port adapter (commercial service tool)
and hose with pressure pump.
8. Locate the leak using a leak detector (commercial service tool).
WITHOUT CONSULT-III
ALBIA0349ZZ
SEF462UA
SEF200U
2010 Pathfinder
EVAP LEAK CHECK
EC-961
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1. Attach the EVAP service port adapter (commercial service tool)
securely to the EVAP service port (2).
-
EVAP canister purge volume control solenoid valve (1)
-
: Vehicle front
2. Also attach the pressure pump with pressure gauge to the EVAP
service port adapter (commercial service tool).
3. Apply battery voltage between the terminals of EVAP canister
vent control valve (3) to make a closed EVAP system.
-
Fuel filler pipe (top of frame view) (1)
-
EVAP control system pressure sensor (2)
-
EVAP canister (4)
-
Drain filter (5)
-
: Vehicle front
4. To locate the leak, deliver positive pressure to the EVAP system
until pressure gauge points reach 1.38 to 2.76 kPa (0.014 to
0.028 kg/cm
2
, 0.2 to 0.4 psi).
5. Remove EVAP service port adapter (commercial service tool)
and hose with pressure pump.
6. Locate the leak using a leak detector (commercial service tool). Refer to
.
ALBIA0349ZZ
SEF462UA
AWBIA0134ZZ
2010 Pathfinder
EC-962
< ON-VEHICLE REPAIR >
[VK56DE]
EVAP CANISTER
ON-VEHICLE REPAIR
EVAP CANISTER
Component Inspection
INFOID:0000000005257930
EVAP CANISTER
Check EVAP canister as per the following:
1. Block port
B
.
2. Blow air into port
A
and check that it flows freely out of port
C
.
3. Release blocked port
B
.
4. Apply vacuum pressure to port
B
and check that vacuum pres-
sure exists at the ports
A
and
C
.
5. Block port
A
and
B
.
6. Apply pressure to port
C
and check that there is no leakage.
Removal and Installation
INFOID:0000000005257931
EVAP CANISTER
Tighten EVAP canister as shown in the figure.
EVAP CANISTER VENT CONTROL VALVE
1. Turn EVAP canister vent control valve counterclockwise.
2. Remove the EVAP canister vent control valve.
Always replace O-ring with a new one.
PBIB2568E
: N-·m (kg-m, in-lb)
BBIA0566E
BBIA0567E
2010 Pathfinder
SERVICE DATA AND SPECIFICATIONS (SDS)
EC-963
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SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
Fuel Pressure
INFOID:0000000005257932
Idle Speed and Ignition Timing
INFOID:0000000005257933
*: Under the following conditions:
• Air conditioner switch: OFF
• Electric load: OFF (Lights, rear window defogger and heater fan)
• Steering wheel: Kept in straight-ahead position
Calculated Load Value
INFOID:0000000005257934
Mass Air Flow Sensor
INFOID:0000000005257935
*: Engine is warmed up to normal operating temperature and running under no load.
Intake Air Temperature Sensor
INFOID:0000000005257936
Engine Coolant Temperature Sensor
INFOID:0000000005257937
A/F Sensor 1 Heater
INFOID:0000000005257938
Fuel pressure at idling kPa (kg/cm
2
, psi)
Approximately 350 (3.57, 51)
Target idle speed
No-load* (in the P or N position)
650
±
50 rpm
Air conditioner: ON
In the P or N position
700 rpm or more
Ignition timing
In the P or N position
15
°
±
5
°
BTDC
Condition
Calculated load value (%) (Using CONSULT-III or GST)
At idle
14.0 - 33.0
At 2,500 rpm
12.0 - 25.0
Supply voltage
Battery voltage (11 - 14 V)
Output voltage at idle
1.0 - 1.3 V*
Mass air flow (Using CONSULT-III or GST)
3.0 - 9.0 g·m/sec at idle*
9.0 - 28.0 g·m/sec at 2,500 rpm*
Temperature [
°
C (
°
F)]
Resistance (k
Ω
)
25 (77)
1.800 - 2.200
Temperature [
°
C (
°
F)]
Resistance (k
Ω
)
20 (68)
2.1 - 2.9
50 (122)
0.68 - 1.00
90 (194)
0.236 - 0.260
Resistance [at 25
°
C (77
°
F)]
1.98 - 2.66
Ω
2010 Pathfinder
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