Nissan Frontier D40. Manual - part 390

P0455 EVAP CONTROL SYSTEM

EC-251

< COMPONENT DIAGNOSIS >

[QR25DE]

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OK

>> GO TO 3.

NG

>> 1.

Open fuel filler cap, then clean cap and fuel filler neck threads using air blower.

2.

Retighten until ratcheting sound is heard.

3.

CHECK FUEL FILLER CAP FUNCTION

Check for air releasing sound while opening the fuel filler cap.
OK or NG

OK

>> GO TO 5.

NG

>> GO TO 4.

4.

CHECK FUEL TANK VACUUM RELIEF VALVE

Refer to 

EC-254, "Component Inspection"

OK or NG

OK

>> GO TO 5.

NG

>> Replace fuel filler cap with a genuine one.

5.

CHECK EVAP PURGE LINE

Check EVAP purge line (pipe, rubber tube, fuel tank and EVAP canister) for cracks, improper connection or
disconnection.
Refer to 

EC-42

.

OK or NG

OK

>> GO TO 6.

NG

>> Repair or reconnect the hose.

6.

CLEAN EVAP PURGE LINE

Clean EVAP purge line (pipe and rubber tube) using air blower.

>> GO TO 7.

7.

CHECK EVAP CANISTER VENT CONTROL VALVE

Check the following.
• EVAP canister vent control is installed properly.

Refer to 

EC-459, "Removal and Installation"

.

• EVAP canister vent control valve.

Refer to 

EC-254, "Component Inspection"

.

OK or NG

OK

>> GO TO 8.

NG

>> Repair or replace EVAP canister vent control valve and O-ring.

8.

INSTALL THE PRESSURE PUMP

To locate the EVAP leak, install EVAP service port adapter and pres-
sure pump to EVAP service port securely.
NOTE:
Improper installation of the EVAP service port adapter to the
EVAP service port may cause leaking.

BBIA0620E

EC-252

< COMPONENT DIAGNOSIS >

[QR25DE]

P0455 EVAP CONTROL SYSTEM

With CONSULT-III>>GO TO 9.
Without CONSULT-III>>GO TO 10.

9.

CHECK FOR EVAP LEAK

 With CONSULT-III

1.

Turn ignition switch ON.

2.

Select “EVAP SYSTEM CLOSE” of “WORK SUPPORT” mode with CONSULT-III.

3.

Touch “START” and apply pressure into the EVAP line until the pressure indicator reaches the middle of
the bar graph.

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 the system.

4.

Using EVAP leak detector, locate the EVAP leak. For the leak
detector, refer to the instruction manual for more details.
Refer to 

EC-457, "How to Detect Fuel Vapor Leakage"

.

OK or NG

OK

>> GO TO 11.

NG

>> Repair or replace.

10.

CHECK FOR EVAP LEAK

 Without CONSULT-III

1.

Turn ignition switch OFF.

2.

Apply 12 volts DC to EVAP canister vent control valve (1). The
valve will close. (Continue to apply 12 volts until the end of test.)
- EVAP control system pressure sensor (2)
- Drain filter (3)
- EVAP canister (4)
- 

 : Vehicle front

3.

Pressurize the EVAP line using pressure pump with 1.3 to 2.7
kPa (0.013 to 0.028 kg/cm

2

, 0.19 to 0.39 psi), then remove

pump and EVAP service port adapter.

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 the system.

SEF916U

SEF200U

ALBIA0514ZZ

P0455 EVAP CONTROL SYSTEM

EC-253

< COMPONENT DIAGNOSIS >

[QR25DE]

C

D

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F

G

H

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M

A

EC

N

P

O

4.

Using EVAP leak detector, locate the EVAP leak. For the leak
detector, refer to the instruction manual for more details. Refer
to 

EC-457, "How to Detect Fuel Vapor Leakage"

.

OK or NG

OK

>> GO TO 12.

NG

>> Repair or replace.

11.

CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE OPERATION

 With CONSULT-III

1.

Disconnect vacuum hose from EVAP canister purge volume control solenoid valve at EVAP service port.

2.

Start engine.

3.

Perform “PURG VOL CONT/V” in “ACTIVE TEST” mode.

4.

Touch “Qu” on CONSULT-III screen to increase “PURG VOL CONT/V” opening to 100%.

5.

Check vacuum hose for vacuum when revving engine up to 2,000 rpm.

OK or NG

OK

>> GO TO 14.

NG

>> GO TO 13.

12.

CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE OPERATION

 Without CONSULT-III

1.

Start engine and warm it up to normal operating temperature.

2.

Stop engine.

3.

Disconnect vacuum hose from EVAP canister purge volume control solenoid valve at EVAP service port.

4.

Start engine and let it idle for at least 80 seconds.

5.

Check vacuum hose for vacuum when revving engine up to 2,000 rpm.

OK or NG

OK

>> GO TO 15.

NG

>> GO TO 13.

13.

CHECK VACUUM HOSE

Check vacuum hoses for clogging or disconnection. Refer to

EC-42, "Description"

 .

OK or NG

OK (With CONSULT-III)>>GO TO 14.
OK (Without CONSULT-III)>>GO TO 15.
NG

>> Repair or reconnect the hose.

14.

CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE

 With CONSULT-III

1.

Start engine.

2.

Perform “PURG VOL CONT/V” in “ACTIVE TEST” mode with CONSULT-III. Check that engine speed var-
ies according to the valve opening.

OK or NG

OK

>> GO TO 16.

NG

>> GO TO 15.

15.

CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE

Refer to 

EC-228, "Component Inspection"

.

OK or NG

SEF200U

Vacuum should exist.

Vacuum should exist.

EC-254

< COMPONENT DIAGNOSIS >

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P0455 EVAP CONTROL SYSTEM

OK

>> GO TO 16.

NG

>> Replace EVAP canister purge volume control solenoid valve.

16.

CHECK FUEL TANK TEMPERATURE SENSOR

Refer to 

EC-180, "Component Inspection"

.

OK or NG

OK

>> GO TO 17.

NG

>> Replace fuel level sensor unit.

17.

CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR

Refer to 

EC-243, "Component Inspection"

.

OK or NG

OK

>> GO TO 18.

NG

>> Replace EVAP control system pressure sensor.

18.

CHECK EVAP/ORVR LINE

Check EVAP/ORVR line between EVAP canister and fuel tank for clogging, kinks, looseness and improper
connection. For location, refer to 

EC-42

.

OK or NG

OK

>> GO TO 19.
>> Repair or replace hoses and tubes.

19.

CHECK RECIRCULATION LINE

Check recirculation line between fuel filler tube and fuel tank for clogging, kinks, cracks, looseness and
improper connection.

OK or NG

OK

>> GO TO 20.
>> Repair or replace hoses, tubes or fuel filler tube.

20.

CHECK REFUELING EVAP VAPOR CUT VALVE

Refer to

EC-389, "Component Inspection"

.

OK or NG

OK

>> GO TO 21.
>> Replace refueling EVAP vapor cut valve with fuel tank.

21.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-46, "Intermittent Incident"

.

>> INSPECTION END

Component Inspection

INFOID:0000000005273251

FUEL TANK VACUUM RELIEF VALVE (BUILT INTO FUEL FILLER CAP)

1.

Turn ignition switch OFF.

2.

Remove fuel filler cap.

3.

Wipe clean valve housing.

SEF445Y