Infiniti M35/M45 Y50. Manual — part 493
DTC P0455 EVAP CONTROL SYSTEM
EC-445
[VQ35DE]
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EC
DTC P0455 EVAP CONTROL SYSTEM
PFP:14950
On Board Diagnosis Logic
NBS00512
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.
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
P0455
0455
EVAP control system
gross leak detected
EVAP control system has a very large leak
such as fuel filler cap fell off, EVAP control sys-
tem 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
solenoid 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
EC-446
[VQ35DE]
DTC P0455 EVAP CONTROL SYSTEM
●
Use only a genuine NISSAN rubber tube as a replacement.
DTC Confirmation Procedure
NBS00513
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
PBIB2869E
PBIB0829E
DTC P0455 EVAP CONTROL SYSTEM
EC-447
[VQ35DE]
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EC
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-447, "Diagnostic Procedure"
.
If P0442 is displayed, perform Diagnostic Procedure for DTC
P0442
EC-393, "Diagnostic Procedure"
WITH GST
NOTE:
Be sure to read the explanation of
1.
Start engine.
2.
Drive vehicle according to
3.
Stop vehicle.
4.
Turn ignition switch OFF, wait at least 10 seconds and then turn ON.
5.
Select Service $07 with GST.
●
If P0441 is displayed on the screen, go to
EC-388, "Diagnostic Procedure"
●
If P0442 is displayed on the screen, go to
EC-393, "Diagnostic Procedure"
●
If P0455 is displayed on the screen, go to
EC-447, "Diagnostic Procedure"
Diagnostic Procedure
NBS00514
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.
SEC763C
SEF915U
EC-448
[VQ35DE]
DTC P0455 EVAP CONTROL SYSTEM
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.
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-420, "Component Inspection"
OK or NG
OK
>> GO TO 8.
NG
>> Repair or replace EVAP canister vent control valve and O-ring.
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