Nissan Frontier D40. Manual - part 566

FUEL PRESSURE

EC-955

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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-956

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EVAP LEAK CHECK

EVAP LEAK CHECK

How to Detect Fuel Vapor Leakage

INFOID:0000000005273911

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-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-493,

"Description"

.

 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 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-493, "Description"

.

SEF200U

SEF462UA

AWBIA0134ZZ

EVAP CANISTER

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ON-VEHICLE REPAIR

EVAP CANISTER

Component Inspection

INFOID:0000000005273912

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:0000000005273913

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

EC-958

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SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)

Fuel Pressure

INFOID:0000000005273914

Idle Speed and Ignition Timing

INFOID:0000000005273915

*: 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:0000000005273916

Mass Air Flow Sensor

INFOID:0000000005273917

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

Intake Air Temperature Sensor

INFOID:0000000005273918

Engine Coolant Temperature Sensor

INFOID:0000000005273919

Air Fuel Ratio (A/F) Sensor 1 Heater

INFOID:0000000005273920

Fuel pressure at idling kPa (kg/cm

2

, psi)

Approximately 350 (3.57, 51)

Target idle speed

No load* [in P or N position (A/T), 
Neutral position (M/T)]

625 

±

 50 rpm

Air conditioner: ON

In P or N position (A/T), Neutral posi-
tion (M/T)

625 rpm or more

Ignition timing

In P or N position (A/T), Neutral posi-
tion (M/T)

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