Nissan Frontier D22. Instruction — part 453
DTC P0442 EVAP CONTROL SYSTEM
EC-915
[VG33E]
C
D
E
F
G
H
I
J
K
L
M
A
EC
7.
CHECK FOR EVAP LEAK
Without CONSULT-II
1.
Turn ignition switch OFF.
2.
Apply 12 volts DC to EVAP canister vent control valve. The valve will close. (Continue to apply 12 volts
until the end of test.)
3.
Apply 12 volts DC to vacuum cut valve bypass valve. The valve
will open. (Continue to apply 12V until the end of test.)
4.
Pressurize the EVAP line using pressure pump with 1.3 to 2.7
kPa (10 to 20 mmHg, 0.39 to 0.79 inHg), then remove pump and
EVAP service port adapter.
NOTE:
●
Never use compressed air or a high pressure pump.
●
Do not exceed 4.12 kPa (0.042 kg/cm
2
, 0.6 psi) of pres-
sure in the system.
5.
Using EVAP leak detector, locate the EVAP leak. For the leak
detector, refer to the instruction instruction for more details. Refer
to
EC-1165, "EVAPORATIVE EMISSION LINE DRAWING"
.
OK or NG
OK
>> GO TO 8.
NG
>> Repair or replace.
8.
CHECK WATER SEPARATOR
1.
Check visually for insect nests in the water separator air inlet.
2.
Check visually for cracks or flaws in the appearance.
3.
Check visually for cracks or flaws in the hose.
4.
Check that A and C are not clogged by blowing air into B with
A , and then C plugged.
5.
In case of NG in items 2 - 4, replace the parts.
NOTE:
●
Do not disassemble water separator.
OK or NG
OK
>> GO TO 9.
NG
>> Replace water separator.
9.
CHECK EVAP CANISTER VENT CONTROL VALVE, O-RING AND CIRCUIT
Refer to
EC-1083, "DTC Confirmation Procedure"
OK or NG
OK
>> GO TO 10.
NG
>> Repair or replace EVAP canister vent control valve and O-ring or harness/connector.
AEC632A
SEF200U
PBIB1032E
EC-916
[VG33E]
DTC P0442 EVAP CONTROL SYSTEM
10.
CHECK IF EVAP CANISTER SATURATED WITH WATER
1.
Remove EVAP canister with EVAP canister vent control valve attached.
2.
Check if water will drain from the EVAP canister.
Yes or No
Yes
>> GO TO 11.
No (With CONSULT-II)>>GO TO 13.
No (Without CONSULT-II)>>GO TO 14.
11.
CHECK EVAP CANISTER
Weigh the EVAP canister with the EVAP canister vent control valve attached.
The weight should be less than 1.8 kg (4.0 lb).
OK or NG
OK (With CONSULT-II)>>GO TO 13.
OK (Without CONSULT-II)>>GO TO 14.
NG
>> GO TO 12.
12.
DETECT MALFUNCTIONING PART
Check the following.
●
EVAP canister for damage
●
EVAP hose between EVAP canister and water separator for clogging or poor connection
>> Repair hose or replace EVAP canister.
13.
CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE OPERATION
With CONSULT-II
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-II screen to increase “PURG VOL
CONT/V” opening to 100%.
5.
Check vacuum hose for vacuum when revving engine up to
2,000 rpm.
OK or NG
OK
>> GO TO 17.
NG
>> GO TO 15.
SEF596U
Vacuum should exist.
SEF985Y
DTC P0442 EVAP CONTROL SYSTEM
EC-917
[VG33E]
C
D
E
F
G
H
I
J
K
L
M
A
EC
14.
CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE OPERATION
Without CONSULT-II
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.
Vacuum should exist.
OK or NG
OK
>> GO TO 17.
NG
>> GO TO 15.
15.
CHECK VACUUM HOSE
Check vacuum hoses for clogging or disconnection. Refer to
OK or NG
OK
>> GO TO 16.
NG
>> Repair or reconnect the hose.
16.
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.
OK or NG
OK
>> GO TO 18.
NG
>> GO TO 17.
SEF985Y
EC-918
[VG33E]
DTC P0442 EVAP CONTROL SYSTEM
17.
CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
With CONSULT-II
Check air passage continuity of EVAP canister purge volume control
solenoid valve under the following conditions.
Without CONSULT-II
Check air passage continuity of EVAP canister purge volume control
solenoid valve under the following conditions.
OK or NG
OK
>> GO TO 18.
NG
>> Replace EVAP canister purge volume control solenoid valve.
AEC652A
Condition PURG VOL CONT/V value
Air passage continuity between A or B
100%
Yes
0%
No
SEF660U
AEC652A
Condition
Air passage continuity between A or B
12V direct current supply between ter-
minals 1 and 2
Yes
No supply
No
SEF661U
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