Nissan Frontier D22. Instruction — part 598
DTC P0441 EVAP CONTROL SYSTEM
EC-1495
[VG33ER]
C
D
E
F
G
H
I
J
K
L
M
A
EC
6.
CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
With CONSULT-II
1.
Start engine.
2.
Perform “PURG VOL CONT/V” in “ACTIVE TEST” mode with
CONSULT-II. Check that engine speed varies according to the
valve opening.
If OK, inspection end. If NG, go to following step.
3.
Check air passage continuity.
If NG, replace the EVAP canister purge volume control solenoid
valve.
OK or NG
OK
>> GO TO 8.
NG
>> Replace EVAP canister purge volume control solenoid
valve.
7.
CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
Without CONSULT-II
Check air passage continuity.
If NG, replace the EVAP canister purge volume control solenoid
valve.
OK or NG
OK
>> GO TO 8.
NG
>> Replace EVAP canister purge volume control solenoid
valve.
8.
CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR HOSE
1.
Turn ignition switch OFF.
2.
Check disconnection or improper connection of hose connected to EVAP control system pressure sensor.
OK or NG
OK
>> GO TO 9.
NG
>> Repair it.
SEF985Y
Condition
PURG VOL CONT/V value
Air passage continuity between A
and B
100%
Yes
0%
No
SEF660U
Condition
Air passage continuity between A
and B
12V direct current supply
between terminals 1 and 2
Yes
No supply
No
SEF661U
EC-1496
[VG33ER]
DTC P0441 EVAP CONTROL SYSTEM
9.
CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR CONNECTOR
1.
Disconnect EVAP control system pressure sensor harness con-
nector.
2.
Check connectors for water.
Water should not exist.
OK or NG
OK
>> GO TO 10.
NG
>> Replace EVAP control system pressure sensor.
10.
CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR FUNCTION
EC-1524, "DTC Confirmation Procedure"
or P0453,
EC-1530, "DTC Confirmation Pro-
OK or NG
OK
>> GO TO 11.
NG
>> Replace EVAP control system pressure sensor.
11.
CHECK EVAP CANISTER VENT CONTROL VALVE
With CONSULT-II
1.
Perform “VENT CONTROL/V” in “ACTIVE TEST” mode.
2.
Check air passage continuity and operation delay time.
Operation takes less than 1second.
Without CONSULT-II
1.
Check air passage continuity and operation delay time under the
following condition.
Operation takes less than 1 second.
If NG or operation takes more than 1 second, clean valve using air
blower or replace as necessary.
If portion B is rusted, replace control valve.
Make sure new O-ring is installed properly.
OK or NG
OK (With CONSULT-II)>>GO TO 12.
OK (Without CONSULT-II)>>GO TO 13.
NG
>> Replace EVAP canister vent control valve.
AEC651A
Condition VENT CONTROL/V
Air passage continuity between
A and B
ON
No
OFF
Yes
SEF013Z
Condition
Air passage continuity between
A and B
12V direct current supply between
terminals 1 and 2
No
OFF
Yes
BBIA0309E
DTC P0441 EVAP CONTROL SYSTEM
EC-1497
[VG33ER]
C
D
E
F
G
H
I
J
K
L
M
A
EC
12.
CHECK CLOSED THROTTLE POSITION SWITCH
With CONSULT-II
1.
Start engine and warm it up to normal operating temperature.
2.
Turn ignition switch OFF.
3.
Turn ignition switch ON.
4.
Select “DATA MONITOR” mode with CONSULT-II.
5.
Check indication of “CLSD THL/P SW”.
Measurement must be made with closed throttle position switch installed in vehicle.
If NG, adjust closed throttle position switch.
Check the following items. Refer to
6.
If it is impossible to adjust closed throttle position switch in Basic Inspection, replace closed throttle posi-
tion switch.
OK or NG
OK
>> GO TO 14.
NG
>> Replace throttle position switch with throttle position sensor.
Throttle valve conditions
CLSD THL/P SW
Completely closed
ON
Partially open or completely open
OFF
Items
Specifications
Ignitions timing
10
° ± 5° BTDC
Base idle speed
700
± 50 rpm (in P or N position)
Closed throttle position switch idle
position adjustment
Feeler gauge thickness and switch
condition
0.3 mm (0.012 in): ON
0.4 mm (0.016 in): OFF
Target idle speed
750
± 50 rpm (in P or N position)
EC-1498
[VG33ER]
DTC P0441 EVAP CONTROL SYSTEM
13.
CHECK CLOSED THROTTLE POSITION SWITCH
Without CONSULT-II
1.
Start engine and warm it up to normal operating temperature.
2.
Turn ignition switch OFF.
3.
Disconnect closed throttle position switch harness connector.
4.
Check continuity between closed throttle position switch termi-
nals 4 and 5.
Resistance measurement must be made with closed throttle
position switch installed in vehicle.
If NG, adjust closed throttle position switch.
Check the following items. Refer to
.
5.
If it is impossible to adjust closed throttle position switch in Basic Inspection, replace closed throttle posi-
tion switch.
OK or NG
OK
>> GO TO 14.
NG
>> Replace throttle position switch with throttle position sensor.
14.
CHECK EVAP PURGE LINE
Inspect EVAP purge line (pipe and rubber tube). Check for evidence of leaks.
Refer to
EC-1741, "EVAPORATIVE EMISSION LINE DRAWING"
OK or NG
OK
>> GO TO 15.
NG
>> Replace it.
15.
CLEAN EVAP PURGE LINE
Clean EVAP purge line (pipe and rubber tube) using air blower.
>> GO TO 16.
16.
CHECK INTERMITTENT INCIDENT
EC-1297, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"
.
>> INSPECTION END.
Throttle valve conditions
Continuity
Completely closed
Yes
Partially open or completely closed
No
Items
Specifications
Ignitions timing
10
° ± 5° BTDC
Base idle speed
700
± 50 rpm (in P or N position)
Closed throttle position switch idle
position adjustment
Feeler gauge thickness and switch
condition
0.3 mm (0.012 in): ON
0.4 mm (0.016 in): OFF
Target idle speed
750
± 50 rpm (in P or N position)
BBIA0423E
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