Nissan Frontier D22. Manual — part 451
DTC P0441 EVAP CONTROL SYSTEM
EC-907
[VG33E]
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-908
[VG33E]
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-1165, "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-696, "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
DTC P0442 EVAP CONTROL SYSTEM
EC-909
[VG33E]
C
D
E
F
G
H
I
J
K
L
M
A
EC
DTC P0442 EVAP CONTROL SYSTEM
PFP:14950
On Board Diagnosis Logic
UBS00DKT
NOTE:
If DTC P0442 is displayed with P1448, perform trouble diagnosis for DTC P1448 first. (See
.)
This diagnosis detects leaks in the EVAP purge line using engine intake manifold vacuum.
If pressure does not increase, the ECM will check for leaks in the line between the fuel tank and EVAP canister
purge volume control solenoid valve, under the following “Vacuum test” conditions.
The vacuum cut valve bypass valve is opened to clear the line between the fuel tank and the EVAP canister
purge volume control solenoid valve. The EVAP canister vent control valve will then be closed to shut the
EVAP purge line off. The EVAP canister purge volume control solenoid valve is 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.
PBIB1438E
EC-910
[VG33E]
DTC P0442 EVAP CONTROL SYSTEM
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.
●
Use only a genuine NISSAN rubber tube as a replacement.
DTC Confirmation Procedure
UBS00DKU
NOTE:
●
If DTC P0442 is displayed with P1448, perform trouble diagnosis for DTC P1448 first. (See
.)
●
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait
at least 5 seconds before conducting the next test.
TESTING CONDITION:
●
Perform “DTC WORK SUPPORT” when the fuel level is between 1/4 to 3/4 full and vehicle is placed
on flat level surface.
●
Open engine hood before conducting the following procedure.
WITH CONSULT-II
1.
Turn ignition switch ON.
2.
Turn ignition switch OFF and wait at least 5 seconds.
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
P0442
EVAP control system
small leak detected
(negative pressure)
EVAP control system has a leak, EVAP
control system does not operate prop-
erly.
●
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.
●
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
●
Blocked or bent rubber tube to EVAP control sys-
tem pressure sensor
●
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
●
water separator
●
EVAP canister is saturated with water
●
EVAP control system pressure sensor
●
Fuel level sensor and the circuit
●
Refueling EVAP vapor cut
●
ORVR system leaks
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст