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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]

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

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]

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

, 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]

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

, 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

EC-45, "Descrip-

tion"

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

, 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

EC-45, "Description"

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

2. Blow air into port

and check that it flows freely out of port

3. Release blocked port

4. Apply vacuum pressure to port

and check that vacuum pres-

sure exists at the ports

and

5. Block port

and

6. Apply pressure to port

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)

[VQ40DE]

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

, 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

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 (

Resistance k

Ω

25 (77)

1.800 - 2.200

Temperature

C (

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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