Nissan Altima L32. Instruction — part 547
P0441 EVAP CONTROL SYSTEM
EC-1309
< COMPONENT DIAGNOSIS >
[VQ35DE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
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 8.
NO
>> GO TO 7.
7.
CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
EC-1319, "Component Inspection"
.
Is the inspection result normal?
YES
>> GO TO 8.
NO
>> Replace EVAP canister purge volume control solenoid valve.
8.
CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR CONNECTOR
1. Disconnect EVAP control system pressure sensor harness connector.
2. Check that water is not inside connectors.
Is the inspection result normal?
YES
>> GO TO 9.
NO
>> Replace EVAP control system pressure sensor.
9.
CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR FUNCTION
for DTC P0453.
Is the inspection result normal?
YES
>> GO TO 10.
NO
>> Replace EVAP control system pressure sensor.
10.
CHECK RUBBER TUBE FOR CLOGGING
1. Disconnect rubber tube connected to EVAP canister vent control valve.
2. Check the rubber tube for clogging.
Is the inspection result normal?
YES
>> GO TO 11.
NO
>> Clean the rubber tube using an air blower.
11.
CHECK EVAP CANISTER VENT CONTROL VALVE
EC-1326, "Component Inspection"
.
Is the inspection result normal?
YES
>> GO TO 12.
NO
>> Replace EVAP canister vent control valve.
12.
CHECK EVAP PURGE LINE
Inspect EVAP purge line (pipe and rubber tube). Check for evidence of leakage.
Is the inspection result normal?
YES
>> GO TO 13.
NO
>> Repair EVAP purge line.
13.
CLEAN EVAP PURGE LINE
Clean EVAP purge line (pipe and rubber tube) using air blower.
>> GO TO 14.
14.
CHECK INTERMITTENT INCIDENT
GI-42, "Intermittent Incident"
.
>> INSPECTION END
EC-1310
< COMPONENT DIAGNOSIS >
[VQ35DE]
P0442 EVAP CONTROL SYSTEM
P0442 EVAP CONTROL SYSTEM
DTC Logic
INFOID:0000000004362154
DTC DETECTION LOGIC
This diagnosis detects leakage in the EVAP purge line using engine intake manifold vacuum.
If pressure does not increase, the ECM will check for leakage in the line between the fuel tank and EVAP can-
ister purge volume control solenoid valve, under the following “Vacuum test” conditions.
The EVAP canister vent control valve is closed to shut the EVAP purge line off. The EVAP canister purge vol-
ume control solenoid valve will then be opened to depressurize the EVAP purge line using intake manifold
vacuum. After this occurs, the EVAP canister purge volume control solenoid valve will be closed.
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
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
P0442
EVAP control system
small leakage detected
(negative pressure)
EVAP control system has a leakage,
EVAP control system does not operate
properly.
• 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.
• Leakage 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 leakage
• EVAP purge line (pipe and rubber tube) leakage
• 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 canister is saturated with water
• EVAP control system pressure sensor
• Fuel level sensor and the circuit
• Refueling EVAP vapor cut valve
• ORVR system leakage
PBIB1026E
P0442 EVAP CONTROL SYSTEM
EC-1311
< COMPONENT DIAGNOSIS >
[VQ35DE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
1.
PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following before conduct-
ing 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.
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.
• Always perform test at a temperature of 0 to 30
°C (32 to 86°F).
NOTE:
Check that EVAP hoses are connected to EVAP canister purge volume control solenoid valve properly.
Will CONSULT-III be used?
YES
>> GO TO 2.
NO
>> GO TO 3.
2.
PERFORM DTC CONFIRMATION PROCEDURE
With CONSULT-III
1. Turn ignition switch ON.
2. Turn ignition switch OFF and wait at least 10 seconds.
3. Turn ignition switch ON and select “DATA MONITOR” mode with CONSULT-III.
4. Check that the following conditions are met.
COOLAN TEMP/S: 0 - 70
°C (32 - 158°F)
INT/A TEMP SE: 0 - 30
°C (32 - 86°F)
5. Select “EVP SML LEAKAGE P0442/P1442” of “EVAPORATIVE SYSTEM” in “DTC WORK SUPPORT”
mode with CONSULT-III.
Follow the instructions displayed.
NOTE:
If the engine speed cannot be maintained within the range displayed on the CONSULT-III screen, go to
EC-1048, "BASIC INSPECTION : Special Repair Requirement"
Which is displayed on CONSULT-III screen?
OK
>> INSPECTION END
NG
>> Go to
EC-1311, "Diagnosis Procedure"
.
3.
PERFORM COMPONENT FUNCTION CHECK
With GST
NOTE:
Be sure to read the explanation of DRIVING PATTERN in
EC-1558, "How to Set SRT Code"
vehicle.
1. Start engine.
2. Drive vehicle according to 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 displayed?
YES-1 >> P0441: Go to
EC-1307, "Diagnosis Procedure"
YES-2 >> P0442: Go to
EC-1311, "Diagnosis Procedure"
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000004362155
1.
CHECK FUEL FILLER CAP DESIGN
1. Turn ignition switch OFF.
EC-1312
< COMPONENT DIAGNOSIS >
[VQ35DE]
P0442 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-1315, "Component Inspection"
.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Replace fuel filler cap with a genuine one.
5.
CHECK FOR EVAP LEAKAGE
Is there any leakage in EVAP line?
YES
>> Repair or replace malfunctioning part.
NO
>> GO TO 6.
6.
CHECK EVAP CANISTER VENT CONTROL VALVE
Check the following.
• EVAP canister vent control valve is installed properly.
EC-1583, "Removal and Installation"
• EVAP canister vent control valve.
EC-1326, "Component Inspection"
.
Is the inspection result normal?
YES
>> GO TO 7.
NO
>> Repair or replace EVAP canister vent control valve and O-ring.
7.
CHECK IF EVAP CANISTER IS SATURATED WITH WATER
SEF915U
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст