Nissan Pathfinder (2010 year). Manual — part 300
EC-492
< PRECAUTION >
[VQ40DE]
PRECAUTIONS
•
Never operate fuel pump when there is no fuel in lines.
•
Tighten fuel hose clamps to the specified torque.
•
Never depress accelerator pedal when starting.
•
Immediately after starting, Never rev up engine unnecessarily.
•
Never rev up engine just prior to shutdown.
•
When installing C.B. ham radio or a mobile phone, Always
observe the following as it may adversely affect electronic
control systems depending on installation location.
-
Keep the antenna as far as possible from the electronic con-
trol units.
-
Keep the antenna feeder line more than 20 cm (8 in) away
from the harness of electronic controls.
Never let them run parallel for a long distance.
-
Adjust the antenna and feeder line so that the standing-wave
radio can be kept smaller.
-
Always ground the radio to vehicle body.
BBIA0529E
SEF709Y
SEF708Y
PBIB1512E
2010 Pathfinder
PREPARATION
EC-493
< PREPARATION >
[VQ40DE]
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PREPARATION
PREPARATION
Special Service Tool
INFOID:0000000005257470
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Tool number
(Kent-Moore No.)
Tool name
Description
EG17650301
(J-33984-A)
Radiator cap tester
adapter
Adapts radiator cap tester to radiator cap and radi-
ator filler neck
a: 28 (1.10) dia.
b: 31.4 (1.236) dia.
c: 41.3 (1.626) dia.
Unit: mm (in)
(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
S-NT564
LEC642
LBIA0376E
PBIC0198E
2010 Pathfinder
EC-494
< PREPARATION >
[VQ40DE]
PREPARATION
Commercial Service Tool
INFOID:0000000005257471
Tool name
(Kent-Moore No.)
Description
Leak detector
i.e.: (J-41416)
Locats the EVAP leak
EVAP service port
adapter
i.e.: (J-41413-OBD)
Applys positive pressure through EVAP service
port
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.
S-NT703
S-NT704
S-NT815
S-NT705
AEM488
S-NT779
2010 Pathfinder
FUEL PRESSURE
EC-495
< ON-VEHICLE MAINTENANCE >
[VQ40DE]
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ON-VEHICLE MAINTENANCE
FUEL PRESSURE
Fuel Pressure Check
INFOID:0000000005257472
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 two or three times to release all fuel pressure.
5. Turn ignition switch OFF.
Without CONSULT-III
1. Remove fuel pump fuse (No.48) located in IPDM E/R.
2. Start engine.
3. After engine stalls, crank it two or three times to release all fuel
pressure.
4. Turn ignition switch OFF.
5. Reinstall fuel pump fuse after servicing fuel system.
FUEL PRESSURE CHECK
CAUTION:
Be careful not to scratch or get the fuel hose connection area dirty when servicing, so that the quick
connector o-ring maintains sealability.
NOTE:
•
Prepare pans or saucers under the disconnected fuel line because the fuel may spill out. The fuel
pressure cannot be completely released because R51 models do not have fuel return system.
•
Use Fuel Pressure Gauge Kit J-44321 and Fuel Pressure Adapter J-44321-6 to check fuel pressure.
1. Release fuel pressure to zero. Refer to "FUEL PRESSURE RELEASE".
2. Remove fuel hose using Quick Connector Release J-45488. Refer to
EM-46, "Removal and Installation"
.
• Do not twist or kink fuel hose because it is plastic hose.
• Do not remove fuel hose from quick connector.
• Keep fuel hose connections clean.
3. Install Fuel Pressure Adapter J-44321-6 and Fuel Pressure
Gauge (from kit J-44321) 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.
• During fuel pressure check, check for fuel leakage from fuel
connection every 3 minutes.
7. If result is unsatisfactory, go to next step.
BBIA0534E
At idling: Approximately 350 kPa (3.57 kg/cm
2
, 51 psi)
BBIA0535E
2010 Pathfinder
EC-496
< ON-VEHICLE MAINTENANCE >
[VQ40DE]
FUEL PRESSURE
8. 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.
9. Before disconnecting Fuel Pressure Gauge and Fuel Pressure Adapter J-44321-6, release fuel pressure
to zero. Refer to "FUEL PRESSURE RELEASE".
2010 Pathfinder
EVAP LEAK CHECK
EC-497
< ON-VEHICLE MAINTENANCE >
[VQ40DE]
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EVAP LEAK CHECK
How to Detect Fuel Vapor Leakage
INFOID:0000000005257473
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:
• Do not start engine.
• Improper installation of EVAP service port adapter to the EVAP service port may cause a leak.
WITH CONSULT-III
1. Attach the EVAP service port adapter securely to the EVAP service port.
2. Also attach the pressure pump and hose to the EVAP service port adapter.
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 and hose with pressure pump.
8. Locate the leak using a leak detector. Refer to
WITHOUT CONSULT-III
1. Attach the EVAP service port adapter securely to the EVAP ser-
vice port.
2. Also attach the pressure pump with pressure gauge to the EVAP
service port adapter.
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 ccanister (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 and hose with pressure
pump.
6. Locate the leak using a leak detector. Refer to
SEF200U
SEF462UA
AWBIA0134ZZ
2010 Pathfinder
EC-498
< ON-VEHICLE REPAIR >
[VQ40DE]
EVAP CANISTER
ON-VEHICLE REPAIR
EVAP CANISTER
Component Inspection
INFOID:0000000005257474
EVAP CANISTER
Check EVAP canister as follows:
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:0000000005257475
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
BBIA0566E
BBIA0567E
2010 Pathfinder
SERVICE DATA AND SPECIFICATIONS (SDS)
EC-499
< SERVICE DATA AND SPECIFICATIONS (SDS)
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SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
Fuel Pressure
INFOID:0000000005257476
Idle Speed and Ignition Timing
INFOID:0000000005257477
*: Under the following conditions:
• Air conditioner switch: OFF
• Electric load: OFF (Lights, heater fan & rear window defogger)
• Steering wheel: Kept in straight-ahead position
Calculated Load Value
INFOID:0000000005257478
Mass Air Flow Sensor
INFOID:0000000005257479
*: Engine is warmed up to normal operating temperature and running under no load.
Intake Air Temperature Sensor
INFOID:0000000005257480
Engine Coolant Temperature Sensor
INFOID:0000000005257481
Air Fuel Ratio (A/F) Sensor 1 Heater
INFOID:0000000005257482
Fuel pressure at idling kPa (kg/cm
2
, psi)
Approximately 350 (3.57, 51)
Target idle speed
No load* (in P or N position)
625
±
50 rpm
Air conditioner: ON
In P or N position
625 rpm or more
Ignition timing
In P or N position
15
±
5
°
BTDC
Condition
Calculated load value% (Using CONSULT-III or GST)
At idle
5 - 35
At 2,500 rpm
5 - 35
Supply voltage
Battery voltage (11 - 14V)
Output voltage at idle
0.9 - 1.2*V
Mass air flow (Using CONSULT-III or GST)
2.0 - 6.0 g·m/sec at idle*
7.0 - 20.0 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)]
1.80 - 2.44
Ω
2010 Pathfinder
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