Nissan Frontier. Manual — part 702
FUEL PRESSURE
EC-1379
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[VQ40DE FOR MEXICO]
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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
< PERIODIC MAINTENANCE >
[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
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
.
SEF200U
SEF462UA
AWBIA0134ZZ
SERVICE DATA AND SPECIFICATIONS (SDS)
EC-1381
< SERVICE DATA AND SPECIFICATIONS (SDS)
[VQ40DE FOR MEXICO]
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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
< SERVICE DATA AND SPECIFICATIONS (SDS)
[VQ40DE FOR MEXICO]
SERVICE DATA AND SPECIFICATIONS (SDS)
Heated Oxygen sensor 2 Heater
INFOID:0000000009482060
Crankshaft Position Sensor (POS)
INFOID:0000000009482061
EC-1198, "Component Inspection"
.
Camshaft Position Sensor (PHASE)
INFOID:0000000009482062
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
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