Nissan Frontier. Manual - part 702

FUEL PRESSURE

EC-1379

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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".

EC-1380

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[VQ40DE FOR MEXICO]

EVAP LEAK CHECK

EVAP LEAK CHECK

How to Detect Fuel Vapor Leakage

INFOID:0000000009482052

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 to the EVAP service port may cause a leak.

 WITH CONSULT

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.

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-988,

"Description"

.

 WITHOUT CONSULT

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 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 and hose with pressure

pump.

6. Locate the leak using a leak detector. Refer to 

EC-988, "Description"

.

SEF200U

SEF462UA

AWBIA0134ZZ

SERVICE DATA AND SPECIFICATIONS (SDS)

EC-1381

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SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)

Fuel Pressure

INFOID:0000000009482053

Idle Speed and Ignition Timing

INFOID:0000000009482054

*: 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:0000000009482055

Mass Air Flow Sensor

INFOID:0000000009482056

*: Engine is warmed up to normal operating temperature and running under no load.

Intake Air Temperature Sensor

INFOID:0000000009482057

Engine Coolant Temperature Sensor

INFOID:0000000009482058

Air Fuel Ratio (A/F) Sensor 1 Heater

INFOID:0000000009482059

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 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 or GST)

2.0 - 6.0 g/s at idle*

7.0 - 20.0 g/s 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

EC-1382

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SERVICE DATA AND SPECIFICATIONS (SDS)

Heated Oxygen sensor 2 Heater

INFOID:0000000009482060

Crankshaft Position Sensor (POS)

INFOID:0000000009482061

Refer to 

EC-1198, "Component Inspection"

.

Camshaft Position Sensor (PHASE)

INFOID:0000000009482062

Refer to 

EC-1203, "Component Inspection"

.

Throttle Control Motor

INFOID:0000000009482063

Fuel Injector

INFOID:0000000009482064

Fuel Pump

INFOID:0000000009482065

Resistance [at 25

°C (77°F)]

9.9 - 13.3

Ω

Resistance [at 25

°C (77°F)]

Approximately 1 - 15

Ω

Resistance [at 10 - 60

°C (50 - 140°F)]

11.1 - 14.5

Ω

Resistance [at 25

°C (77°F)]

0.2 - 5.0

Ω