Nissan Altima L32. Instruction — part 429
P0455 EVAP CONTROL SYSTEM
EC-837
< COMPONENT DIAGNOSIS >
[QR25DE EXCEPT FOR CALIFORNIA]
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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. Then 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-839, "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.
.
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.
.
• EVAP canister vent control valve.
EC-816, "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
EC-838
< COMPONENT DIAGNOSIS >
[QR25DE EXCEPT FOR CALIFORNIA]
P0455 EVAP CONTROL SYSTEM
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 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-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 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.
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-810, "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-769, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 15.
NO
>> Replace fuel level sensor unit.
Vacuum should exist.
Vacuum should exist.
P0455 EVAP CONTROL SYSTEM
EC-839
< COMPONENT DIAGNOSIS >
[QR25DE EXCEPT FOR CALIFORNIA]
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15.
CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR
EC-824, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 16.
NO
>> Replace EVAP control system pressure sensor.
16.
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
Is the inspection result normal?
YES
>> GO TO 17.
NO
>> Repair or replace hoses and tubes.
17.
CHECK RECIRCULATION LINE
Check recirculation line between fuel filler tube and fuel tank for clogging, kink, cracks, looseness and
improper connection.
Is the inspection result normal?
YES
>> GO TO 18.
NO
>> Repair or replace hose, tube or fuel filler tube.
18.
CHECK REFUELING EVAP VAPOR CUT VALVE
EC-972, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 19.
NO
>> Replace refueling EVAP vapor cut valve with fuel tank.
19.
CHECK INTERMITTENT INCIDENT
GI-42, "Intermittent Incident"
.
>> INSPECTION END
Component Inspection
INFOID:0000000004349796
1.
CHECK FUEL TANK VACUUM RELIEF VALVE
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.
SEF445Y
EC-840
< COMPONENT DIAGNOSIS >
[QR25DE EXCEPT FOR CALIFORNIA]
P0455 EVAP CONTROL SYSTEM
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
come on.
>> INSPECTION END
Pressure: 15.3 - 20.0 kPa (0.156 - 0.204 kg/cm
2
, 2.22 -
2.90 psi)
Vacuum:
−6.0 to −3.3 kPa (−0.061 to −0.034 kg/cm
2
,
−0.87 to −0.48 psi)
SEF943S
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