Infiniti F50. Manual - part 432

DTC P0455 EVAP CONTROL SYSTEM

EC-369

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7.

Make sure that “OK” is displayed.
If “NG” is displayed, select “SELF-DIAG RESULTS” mode and
make sure that “EVAP GROSS LEAK [P0455]” is displayed. If it
is displayed, refer to 

EC-369, "Diagnostic Procedure"

 .

If P0442 is displayed, go to 

EC-332, "Diagnostic Procedure"

 .

If P1442 is displayed, go to 

EC-531, "Diagnostic Procedure"

 .

 WITH GST

NOTE:
Be sure to read the explanation of “Driving Pattern” on 

EC-61

  before driving vehicle.

1.

Start engine.

2.

Drive vehicle according to “Driving Pattern”, 

EC-61

 .

3.

Stop vehicle.

4.

Select “MODE 1” with GST.

●

If SRT of EVAP system is not set yet, go to the following step.

●

If SRT of EVAP system is set, the result will be OK.

5.

Turn ignition switch “OFF” and wait at least 10 seconds.

6.

Start engine.
It is not necessary to cool engine down before driving.

7.

Drive vehicle again according to the “Driving Pattern”, 

EC-61

 .

8.

Stop vehicle.

9.

Select “MODE 3” with GST.

●

If P0455 is displayed on the screen, go to 

EC-369, "Diagnostic Procedure"

 .

●

If P0442 is displayed on the screen, go to 

EC-332, "Diagnostic Procedure"

 .

●

If P0441 is displayed on the screen, go to 

EC-327, "Diagnostic Procedure"

 .

●

If P1442 is displayed on the screen, go to 

EC-531, "Diagnostic Procedure"

 .

●

If P0455, P0441, P0442 and P1442 are not displayed on the screen, go to the following step.

10. Select “MODE 1” with GST.

●

If SRT of EVAP system is set, the result will be OK.

●

If SRT of EVAP system is not set, go to step 5.

Diagnostic Procedure

EBS00MFD

1. 

CHECK FUEL FILLER CAP DESIGN

1.

Turn ignition switch “OFF”.

2.

Check for genuine NISSAN fuel filler cap design.

OK or NG

OK

>> GO TO 2.

NG

>> Replace with genuine NISSAN fuel filler cap.

SEC763C

SEF915U

EC-370

DTC P0455 EVAP CONTROL SYSTEM

2. 

CHECK FUEL FILLER CAP INSTALLATION

Check that the cap is tightened properly by rotating the cap clockwise.

OK or NG

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-687, "FUEL TANK VACUUM RELIEF VALVE (BUILT INTO FUEL FULLER CAP)"

 .

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-685, "EVAPORATIVE EMISSION LINE DRAWING"

 .

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, O-RING AND CIRCUIT

Refer to 

EC-553, "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.

DTC P0455 EVAP CONTROL SYSTEM

EC-371

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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.

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-685, "EVAPORATIVE EMISSION LINE DRAWING"

.

OK or NG

OK

>> GO TO 11.

NG

>> Repair or replace.

PBIB1251E

SEF916U

PEF917U

SEF200U

EC-372

DTC P0455 EVAP CONTROL SYSTEM

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 12 volts 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 pressure 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-685, "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.

PBIB0026E

SEF200U

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