Nissan Frontier D22. Manual - part 314

DTC P0455 EVAP CONTROL SYSTEM

EC-359

[KA24DE]

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EC

7. 

CHECK EVAP CANISTER VENT CONTROL VALVE, O-RING AND CIRCUIT

Refer to 

EC-482, "DTC Confirmation Procedure"

 .

OK or NG

OK

>> GO TO 8.

NG

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

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.

Models with CONSULT-II>>GO TO 9.
Models without CONSULT-II>>GO TO 10.

SEF339V

SEF916U

EC-360

[KA24DE]

DTC P0455 EVAP CONTROL SYSTEM

9. 

CHECK FOR EVAP LEAK

 With CONSULT-II

1.

Turn ignition switch ON.

2.

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

3.

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

NOTE:

●

Never use compressed air or a high pressure pump.

●

Do not exceed 4.12 kPa (0.042 kg/cm

2

 , 0.6 psi) of pres-

sure 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-565, "EVAPORATIVE EMISSION LINE DRAWING"

.

OK or NG

OK

>> GO TO 11.

NG

>> Repair or replace.

PEF658U

PEF917U

SEF200U

DTC P0455 EVAP CONTROL SYSTEM

EC-361

[KA24DE]

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D

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EC

10. 

CHECK FOR EVAP LEAK

 Without CONSULT-II

1.

Turn ignition switch OFF.

2.

Apply 12 volts DC to EVAP canister vent control valve. The
valve will close. (Continue to apply 12 volts until the end of test.)

3.

Apply 12 volts DC to vacuum cut valve bypass valve. The valve
will open. (Continue to apply 12V until the end of test.)

4.

Pressurize the EVAP line using pressure pump with 1.3 to 2.7
kPa (10 to 20 mmHg, 0.39 to 0.79 inHg), then remove pump and
EVAP service port adapter.

NOTE:

●

Never use compressed air or a high pressure pump.

●

Do not exceed 4.12 kPa (0.042 kg/cm

2

 , 0.6 psi) of pres-

sure in the system.

5.

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

EC-565, "EVAPORATIVE EMISSION LINE DRAWING"

 .

OK or NG

OK

>> GO TO 12.

NG

>> Repair or replace.

11. 

CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE OPERATION

 With CONSULT-II

1.

Disconnect vacuum hose to 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-II screen to increase “PURG VOL CONT/V” opening to 100.0%.

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.

SEF503V

SEF200U

SEF595Y

EC-362

[KA24DE]

DTC P0455 EVAP CONTROL SYSTEM

12. 

CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE OPERATION

 Without CONSULT-II

1.

Start engine and warm it up to normal operating temperature.

2.

Stop engine.

3.

Disconnect vacuum hose to 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.
Vacuum should exist.

OK or NG

OK

>> GO TO 14.

NG

>> GO TO 13.

13. 

CHECK VACUUM HOSE

Check vacuum hoses for clogging or disconnection. Refer to 

EC-30, "Vacuum Hose Drawing"

 .

OK or NG

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

>> Repair or reconnect the hose.

14. 

CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE

 With CONSULT-II

1.

Start engine.

2.

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

 OK or NG

OK

>> GO TO 16.

NG

>> GO TO 15.

SEF801Y