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![INFINITI FX35 2005 Service Manual EC-368
[VQ35DE]
DTC P0455 EVAP CONTROL SYSTEM
Revision: 2005 July 2005 FX
Use only a genuine NISSAN rubber tube as a replacement.
DTC Confirmation ProcedureABS006RN
CAUTION:
Never remove fuel filler INFINITI FX35 2005 Service Manual EC-368
[VQ35DE]
DTC P0455 EVAP CONTROL SYSTEM
Revision: 2005 July 2005 FX
Use only a genuine NISSAN rubber tube as a replacement.
DTC Confirmation ProcedureABS006RN
CAUTION:
Never remove fuel filler](/manual-img/42/57020/w960_57020-1760.png)
EC-368
[VQ35DE]
DTC P0455 EVAP CONTROL SYSTEM
Revision: 2005 July 2005 FX
Use only a genuine NISSAN rubber tube as a replacement.
DTC Confirmation ProcedureABS006RN
CAUTION:
Never remove fuel filler cap during the DTC Confirmation Procedure.
NOTE:
Make sure that EVAP hoses are connected to EVAP canister purge volume control solenoid valve
properly.
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait
at least 10 seconds before conducting the next test.
TESTING CONDITION:
Perform “DTC WORK SUPPORT” when the fuel level is between 1/4 and 3/4 full, and vehicle is
placed on flat level surface.
Open engine hood before conducting the following procedures.
WITH CONSULT-II
1. Tighten fuel filler cap securely until ratcheting sound is heard.
2. Turn ignition switch ON.
3. Turn ignition switch OFF and wait at least 10 seconds.
4. Turn ignition switch ON and select “DATA MONITOR” mode with CONSULT-II.
5. Make sure that the following conditions are met. COOLAN TEMP/S: 0 - 70 °C (32 - 158 °F)
INT/A TEMP SE: 0 - 60 °C (32 - 140 °F)
6. Select “EVAP SML LEAK P0442/P1442” of “EVAPORATIVE SYSTEM” in “DTC WORK SUPPORT” mode with CONSULT-II.
Follow the instruction displayed.
NOTE:
If the engine speed cannot be maintained within the range displayed on the CONSULT-II screen, go to
EC-78, "
Basic Inspection" .
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, perform Diagnostic Procedure for DTC
P0442 EC-329, "
Diagnostic Procedure" .
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Revision: 2005 July 2005 FX
WITH GST
NOTE:
Be sure to read the explanation of EC-65, "
Driving Pattern" befor INFINITI FX35 2005 Service Manual DTC P0455 EVAP CONTROL SYSTEM EC-369
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NOTE:
Be sure to read the explanation of EC-65, "
Driving Pattern" befor](/manual-img/42/57020/w960_57020-1761.png)
DTC P0455 EVAP CONTROL SYSTEM EC-369
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Revision: 2005 July 2005 FX
WITH GST
NOTE:
Be sure to read the explanation of EC-65, "
Driving Pattern" before driving vehicle.
1. Start engine.
2. Drive vehicle according to EC-65, "
Driving Pattern" .
3. Stop vehicle.
4. Turn ignition switch OFF, wait at least 10 seconds and then turn ON.
5. Select Service $07 with GST.
If P0455 is displayed on the screen, go to EC-369, "Diagnostic Procedure" .
If P0442 is displayed on the screen, go to Diagnostic Procedure, for DTC P0442, EC-329 .
If P0441 is displayed on the screen, go to Diagnostic Procedure for DTC P0441, EC-324 .
Diagnostic ProcedureABS006RO
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.
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-42, "
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.
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![INFINITI FX35 2005 Service Manual EC-370
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DTC P0455 EVAP CONTROL SYSTEM
Revision: 2005 July 2005 FX
5. CHECK EVAP PURGE LINE
Check EVAP purge line (pipe, rubber tube, fuel tank and EVAP canister) for cracks, improper connecti INFINITI FX35 2005 Service Manual EC-370
[VQ35DE]
DTC P0455 EVAP CONTROL SYSTEM
Revision: 2005 July 2005 FX
5. CHECK EVAP PURGE LINE
Check EVAP purge line (pipe, rubber tube, fuel tank and EVAP canister) for cracks, improper connecti](/manual-img/42/57020/w960_57020-1762.png)
EC-370
[VQ35DE]
DTC P0455 EVAP CONTROL SYSTEM
Revision: 2005 July 2005 FX
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-40, "
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
Check the following.
EVAP canister vent control valve is installed properly.
Refer to EC-43, "
Removal and Installation" .
EVAP canister vent control valve.
Refer to EC-348, "
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.
Models with CONSULT-II>>GO TO 9.
Models without CONSULT-II>>GO TO 10.
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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.
CAUTION:
Never use compressed air or a high pressure pump.
Do not exceed 4.12 kPa (0.042 kg/cm2 , 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-40, "
EVAPORATIVE EMISSION LINE DRAWING" .
OK or NG
OK >> GO TO 11.
NG >> Repair or replace.
PEF917U
SEF200U
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![INFINITI FX35 2005 Service Manual EC-372
[VQ35DE]
DTC P0455 EVAP CONTROL SYSTEM
Revision: 2005 July 2005 FX
10. CHECK FOR EVAP LEAK
Without CONSULT-II
1. Turn ignition switch OFF.
2. Apply 12 volts DC to EVAP canister vent contro INFINITI FX35 2005 Service Manual EC-372
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DTC P0455 EVAP CONTROL SYSTEM
Revision: 2005 July 2005 FX
10. CHECK FOR EVAP LEAK
Without CONSULT-II
1. Turn ignition switch OFF.
2. Apply 12 volts DC to EVAP canister vent contro](/manual-img/42/57020/w960_57020-1764.png)
EC-372
[VQ35DE]
DTC P0455 EVAP CONTROL SYSTEM
Revision: 2005 July 2005 FX
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. 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.
CAUTION:
Never use compressed air or a high pressure pump.
Do not exceed 4.12 kPa (0.042 kg/cm2 , 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-40, "
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%.
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.
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12. CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE OPERATION
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12. CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE OPERATION
Without CONS](/manual-img/42/57020/w960_57020-1765.png)
DTC P0455 EVAP CONTROL SYSTEM EC-373
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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.
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-120, "
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.
15. CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
Refer to EC-341, "
Component Inspection" .
OK or NG
OK >> GO TO 16.
NG >> Replace EVAP canister purge volume control solenoid valve.
16. CHECK FUEL TANK TEMPERATURE SENSOR
Refer to EC-271, "
Component Inspection" .
OK or NG
OK >> GO TO 17.
NG >> Replace fuel level sensor unit. Vacuum should exist.
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![INFINITI FX35 2005 Service Manual EC-374
[VQ35DE]
DTC P0455 EVAP CONTROL SYSTEM
Revision: 2005 July 2005 FX
17. CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR
Refer to EC-358, "
Component Inspection" .
OK or NG
OK >> GO TO 18.
NG >> R INFINITI FX35 2005 Service Manual EC-374
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DTC P0455 EVAP CONTROL SYSTEM
Revision: 2005 July 2005 FX
17. CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR
Refer to EC-358, "
Component Inspection" .
OK or NG
OK >> GO TO 18.
NG >> R](/manual-img/42/57020/w960_57020-1766.png)
EC-374
[VQ35DE]
DTC P0455 EVAP CONTROL SYSTEM
Revision: 2005 July 2005 FX
17. CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR
Refer to EC-358, "
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, kink, looseness and improper con-
nection. For location, refer to EC-46, "
ON BOARD REFUELING VAPOR RECOVERY (ORVR)" .
OK or NG
OK >> GO TO 19.
NG >> Repair or replace hoses and tubes.
19. CHECK RECIRCULATION LINE
Check recirculation line between filler neck tube and fuel tank for clogging, kink, cracks, looseness and
improper connection.
OK or NG
OK >> GO TO 20.
NG >> Repair or replace hose, tube or filler neck tube.
20. CHECK REFUELING EVAP VAPOR CUT VALVE
Refer to EC-49, "
Component Inspection" .
OK or NG
OK >> GO TO 21.
NG >> Replace refueling EVAP vapor cut valve with fuel tank.
21. CHECK INTERMITTENT INCIDENT
Refer to EC-163, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>> INSPECTION END
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Revision: 2005 July 2005 FX
DTC P0456 EVAP CONTROL SYSTEMPFP:14950
On Board Diagnosis LogicABS006RP
This diagnosis INFINITI FX35 2005 Service Manual DTC P0456 EVAP CONTROL SYSTEM EC-375
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On Board Diagnosis LogicABS006RP
This diagnosis](/manual-img/42/57020/w960_57020-1767.png)
DTC P0456 EVAP CONTROL SYSTEM EC-375
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DTC P0456 EVAP CONTROL SYSTEMPFP:14950
On Board Diagnosis LogicABS006RP
This diagnosis detects very small leaks in the EVAP line between fuel tank and EVAP canister purge volume
control solenoid valve, using the intake manifold vacuum in the same way as conventional EVAP small leak
diagnosis.
If ECM judges a leak which corresponds to a very small leak, the very small leak P0456 will be detected.
If ECM judges a leak equivalent to a small leak, EVAP small leak P0442 will be detected.
If ECM judges there are no leaks, the diagnosis will be OK.
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0456
0456 Evaporative emission
control system very
small leak (negative
pressure check)
EVAP system has a very small leak.
EVAP system does not operate prop-
erly.
Incorrect fuel tank vacuum relief valve
Incorrect fuel filler cap used
Fuel filler cap remains open or fails to close.
Foreign matter caught in fuel filler cap.
Leak is in line between intake manifold and EVAP
canister purge volume control solenoid valve.
Foreign matter caught in EVAP canister vent con-
trol valve.
EVAP canister or fuel tank leaks
EVAP purge line (pipe and rubber tube) leaks
EVAP purge line rubber tube bent
Loose or disconnected rubber tube
EVAP canister vent control valve and the circuit
EVAP canister purge volume control solenoid
valve and the circuit
Fuel tank temperature sensor
O-ring of EVAP canister vent control valve is miss-
ing or damaged
EVAP canister is saturated with water
EVAP control system pressure sensor
Refueling EVAP vapor cut valve
ORVR system leaks
Fuel level sensor and the circuit
Foreign matter caught in EVAP canister purge vol-
ume control solenoid valve
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