Infiniti G35 (V35) Sedan. Manual — part 541
EC-310
< COMPONENT DIAGNOSIS >
[VQ35HR]
P0455 EVAP CONTROL SYSTEM
P0455 EVAP CONTROL SYSTEM
DTC Logic
INFOID:0000000000956687
DTC DETECTION LOGIC
This diagnosis detects a very large leak (fuel filler cap fell off etc.) in EVAP system between the fuel tank and
EVAP canister purge volume control solenoid valve.
CAUTION:
• Use only a genuine NISSAN fuel filler cap as a replacement. If an incorrect fuel filler cap is used, the
MIL may come on.
• If the fuel filler cap is not tightened properly, the MIL may come on.
• Use only a genuine NISSAN rubber tube as a replacement.
DTC CONFIRMATION PROCEDURE
1.
PRECONDITIONING
CAUTION:
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
P0455
EVAP control system
gross leak detected
EVAP control system has a very large leak such
as fuel filler cap fell off, EVAP control system
does not operate properly.
• Fuel filler cap remains open or fails to
close.
• Incorrect fuel tank vacuum relief valve
• Incorrect fuel filler cap used
• 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 control 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 so-
lenoid valve and the circuit
• Fuel tank temperature sensor
• O-ring of EVAP canister vent control
valve is missing or damaged.
• EVAP control system pressure sensor
• Refueling EVAP vapor cut valve
• ORVR system leaks
PBIB1026E
P0455 EVAP CONTROL SYSTEM
EC-311
< COMPONENT DIAGNOSIS >
[VQ35HR]
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Never remove fuel filler cap during the DTC Confirmation Procedure.
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
NOTE:
Make sure that EVAP hoses are connected to EVAP canister purge volume control solenoid valve
properly.
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.
Do you have CONSULT-III?
YES
>> GO TO 2.
NO
>> GO TO 4.
2.
PERFORM DTC CONFIRMATION PROCEDURE
With CONSULT-III
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-III.
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-III.
Follow the instruction displayed.
NOTE:
If the engine speed cannot be maintained within the range displayed on the CONSULT-III screen, go to
EC-12, "BASIC INSPECTION : Special Repair Requirement"
.
Which is displayed on CONSULT-III screen?
OK
>> Go to
NG
>> GO TO 3.
3.
CHECK DTC
Check DTC.
Which DTC is detected?
P0455 >> Go to
P0442 >> Go to
4.
PERFORM DTC CONFIRMATION PROCEDURE
With GST
NOTE:
Be sure to read the explanation of Driving Pattern in
before driving vehicle.
1.
Start engine.
2.
Drive vehicle according to Driving Pattern.
3.
Stop vehicle.
4.
Turn ignition switch OFF, wait at least 10 seconds and then turn ON.
5.
Check 1st trip DTC.
Is 1st trip DTC detected?
YES-1 >> P0455: Go to
YES-2 >> P0442: Go to
YES-3 >> P0441: Go to
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000000956688
1.
CHECK FUEL FILLER CAP DESIGN
1.
Turn ignition switch OFF.
EC-312
< COMPONENT DIAGNOSIS >
[VQ35HR]
P0455 EVAP CONTROL SYSTEM
2.
Check for genuine NISSAN fuel filler cap design.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> 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.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Open fuel filler cap, then clean cap and fuel filler neck threads using air blower. Retighten until
ratcheting sound is heard.
3.
CHECK FUEL FILLER CAP FUNCTION
Check for air releasing sound while opening the fuel filler cap.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> GO TO 4.
4.
CHECK FUEL TANK VACUUM RELIEF VALVE
EC-314, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> 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
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> 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.
EC-546, "Removal and Installation"
.
• EVAP canister vent control valve.
EC-290, "Component Inspection"
.
Is the inspection result normal?
YES
>> GO TO 8.
NO
>> Repair or replace EVAP canister vent control valve and O-ring.
8.
CHECK FOR EVAP LEAK
.
Is there any leak in EVAP line?
SEF915U
P0455 EVAP CONTROL SYSTEM
EC-313
< COMPONENT DIAGNOSIS >
[VQ35HR]
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YES
>> Repair or replace.
NO-1
>> With CONSULT-III: GO TO 9.
NO-2
>> Without CONSULT-III: GO TO 10.
9.
CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE OPERATION
With CONSULT-III
1.
Disconnect vacuum hose connected to EVAP canister purge volume control solenoid valve at EVAP ser-
vice port.
2.
Start engine and let it idle.
3.
Select “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.
Is the inspection result normal?
YES
>> GO TO 12.
NO
>> GO TO 11.
10.
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 connected to EVAP canister purge volume control solenoid valve at EVAP ser-
vice 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.
Is the inspection result normal?
YES
>> GO TO 13.
NO
>> GO TO 11.
11.
CHECK VACUUM HOSE
Check vacuum hoses for clogging or disconnection. Refer to
Is the inspection result normal?
YES-1 >> With CONSULT-III: GO TO 12.
YES-2 >> Without CONSULT-III: GO TO 13.
NO
>> Repair or reconnect the hose.
12.
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.
Does engine speed vary according to the valve opening?
YES
>> GO TO 14.
NO
>> GO TO 13.
13.
CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
EC-283, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 14.
NO
>> Replace EVAP canister purge volume control solenoid valve.
14.
CHECK FUEL TANK TEMPERATURE SENSOR
EC-232, "Component Inspection"
Is the inspection result normal?
Vacuum should exist.
Vacuum should exist.
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