P0455
P0455 EVAP CONTROL SYSTEM
DTC Logic
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 illuminate.
- If the fuel filler cap is not tightened properly, the MIL may illuminate.
- Use only a genuine NISSAN rubber tube as a replacement.
DTC CONFIRMATION PROCEDURE
1. PRECONDITIONING
CAUTION:
Never remove fuel filler cap during the DTC Confirmation Procedure.
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.
1.Turn ignition switch OFF and wait at least 10 seconds.
2.Turn ignition switch ON.
3.Turn ignition switch OFF and wait at least 10 seconds.
NOTE:
Check that EVAP hoses are connected to EVAP canister purge volume control solenoid valve properly.
Will CONSULT be used?
YES- GO TO 2.
NO- GO TO 4.
2. PERFORM DTC CONFIRMATION PROCEDURE
With CONSULT
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.
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.
5.Check that the following conditions are met.
6.Select "EVP SML LEAK P0442/P1442" of "EVAPORATIVE SYSTEM" in "DTC WORK SUPPORT" mode with CONSULT.
Follow the instructions displayed.
NOTE:
If the engine speed cannot be maintained within the range displayed on the CONSULT screen, go to Basic Inspection.
Which is displayed on CONSULT screen?
OK- INSPECTION END
NG- GO TO 3.
3. CHECK DTC
Check DTC.
Which DTC is detected?
P0455- Proceed to .
P0442- Proceed to P0442.
4. PERFORM DTC CONFIRMATION PROCEDURE
With GST
NOTE:
Be sure to read the explanation of SRT Set Driving Pattern before driving vehicle.
1.Start engine.
2.Drive vehicle according to SRT Set Driving Pattern.
3.Stop vehicle.
4.Turn ignition switch OFF and wait at least 10 seconds.
5.Turn ignition switch ON
6.Turn ignition switch OFF and wait at least 10 seconds.
7.Turn ignition switch ON.
8.Check 1st trip DTC.
Is 1st trip DTC detected?
YES-1- P0455: Proceed to .
YES-2- P0442: Proceed to P0442.
YES-3- P0441: Proceed to P0441.
NO- INSPECTION END
Diagnosis Procedure
1. CHECK FUEL FILLER CAP DESIGN
1.Turn ignition switch OFF.
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
.
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.
System Diagram.
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.
Removal and Installation.
- EVAP canister vent control valve.
P0447.
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
Testing and Inspection.
Is there any leak in EVAP line?
YES- Repair or replace malfunctioning part.
NO-1- With CONSULT: GO TO 9.
NO-2- Without CONSULT: GO TO 10.
9. CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE OPERATION
With CONSULT
1.Disconnect vacuum hose connected to EVAP canister purge volume control solenoid valve at EVAP service port.
2.Start engine and let it idle.
3.Select "PURG VOL CONT/V" in "ACTIVE TEST" mode.
4.Touch "Qu" on CONSULT screen to increase "PURG VOL CONT/V" opening to 100%.
5.Check vacuum hose for vacuum.
Vacuum should exist.
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
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 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.
Is the inspection result normal?
YES- GO TO 13.
NO- GO TO 11.
11. CHECK VACUUM HOSE
Check vacuum hoses for clogging or disconnection. System Diagram.
Is the inspection result normal?
YES-1- With CONSULT: GO TO 12.
YES-2- Without CONSULT: GO TO 13.
NO- Repair or reconnect the hose.
12. CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
With CONSULT
1.Start engine.
2.Perform "PURG VOL CONT/V" in "ACTIVE TEST" mode with CONSULT. Check that engine speed varies 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
P0443.
Is the inspection result normal?
YES- GO TO 14.
NO- Replace EVAP canister purge volume control solenoid valve. Exploded View.
14. CHECK FUEL TANK TEMPERATURE SENSOR
P0181.
Is the inspection result normal?
YES- GO TO 15.
NO- Replace "fuel level sensor unit and fuel pump". Removal and Installation.
15. CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR
P0451.
Is the inspection result normal?
YES- GO TO 16.
NO- Replace EVAP control system pressure sensor. Removal and Installation.
16. CHECK EVAP/ORVR LINE
Check EVAP/ORVR line between EVAP canister and fuel tank for clogging, kinks, looseness and improper connection. For location, Testing and Inspection.
Is the inspection result normal?
YES- GO TO 17.
NO- Repair or replace hoses and tubes.
17. CHECK RECIRCULATION LINE
Check recirculation line between filler neck tube and fuel tank for clogging, kinks, cracks, looseness and improper connection.
Is the inspection result normal?
YES- GO TO 18.
NO- Repair or replace hose, tube or filler neck tube.
18. CHECK REFUELING EVAP VAPOR CUT VALVE
Testing and Inspection.
Is the inspection result normal?
YES- GO TO 19.
NO- Replace refueling EVAP vapor cut valve with fuel tank. Removal and Installation.
19. CHECK INTERMITTENT INCIDENT
Perform Intermittent Incident.
- INSPECTION END
Component Inspection
1. CHECK FUEL FILLER CAP
1.Turn ignition switch OFF.
2.Remove fuel filler cap.
3.Wipe clean valve housing.
4.Install fuel filler cap adapter (commercial service tool) to fuel filler cap.
5.Check valve opening pressure and vacuum.
Is the inspection result normal?
YES- INSPECTION END
NO- GO TO 2.
2. REPLACE FUEL FILLER CAP
Replace fuel filler cap.
CAUTION:
Use only a genuine fuel filler cap as a replacement. If an incorrect fuel filler cap is used, the MIL may illuminate.
- INSPECTION END