Nissan Frontier D22. Instruction — part 601

DTC P0442 EVAP CONTROL SYSTEM

EC-1507

[VG33ER]

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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

EC-1199, "Vacuum Hose Drawing"

.

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.

SEF677Y

EC-1508

[VG33ER]

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 supply between terminals 1
and 2

Yes

No supply

No

SEF661U

DTC P0442 EVAP CONTROL SYSTEM

EC-1509

[VG33ER]

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EC

18.

CHECK FUEL TANK TEMPERATURE SENSOR

1.

Remove fuel level sensor unit.

2.

Check resistance between fuel level sensor unit and fuel pump
terminals T and E by heating with hot water or heat gun as
shown in the figure.

OK or NG

OK

>> GO TO 19.

NG

>> Replace fuel tank temperature sensor.

19.

CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR

1.

Remove EVAP control system pressure sensor with its harness connector connected.

2.

Remove hose from EVAP control system pressure sensor.

3.

Turn ignition switch ON.

4.

Use pump to apply vacuum and pressure to EVAP control system pressure sensor as shown in figure.

5.

Check input voltage between ECM terminal 62 and ground.

CAUTION:

●

Always calibrate the vacuum pump gauge when using it.

●

Do not apply below

−93.3 kPa (−700 mmHg, −27.56 inHg)

or over 101.3 kPa (760 mmHg, 29.92 inHg) of pressure.

OK or NG

OK

>> GO TO 20.

NG

>> Replace EVAP control system pressure sensor.

20.

CHECK EVAP PURGE LINE

Check EVAP purge line (pipe, rubber tube, fuel tank and EVAP canister) for cracks or improper connection.
Refer to

EC-1741, "EVAPORATIVE EMISSION LINE DRAWING"

.

OK or NG

OK

>> GO TO 21.

NG

>> Repair or reconnect the hose.

21.

CLEAN EVAP PURGE LINE

Clean EVAP purge line (pipe and rubber tube) using air blower.

>> GO TO 22.

22.

CHECK REFUELING EVAP VAPOR LINE

Check refueling EVAP vapor line between EVAP canister and fuel tank for clogging, kink, looseness and
improper connection. For location, refer to

EC-1748, "ON BOARD REFUELING VAPOR RECOVERY

(ORVR)"

.

OK or NG

OK

>> GO TO 23.

NG

>> Repair or replace hoses and tubes.

Temperature

°C (°F)

Resistance k

Ω

20 (68)

2.3 - 2.7

50 (122)

0.79 - 0.90

PBIB1425E

Applied vacuum

Voltage V

Not applied

1.8 - 4.8

-26.7 kpa (-200 mmHg, -7.87 inHg)

2.1 to 2.5V lower than above value

PBIB1426E

EC-1510

[VG33ER]

DTC P0442 EVAP CONTROL SYSTEM

23.

CHECK SIGNAL LINE AND RECIRCULATION LINE

Check signal line and recirculation line between filler neck tube and fuel tank for clogging, kink, cracks, loose-
ness and improper connection.

OK or NG

OK

>> GO TO 24.

NG

>> Repair or replace hoses, tubes or filler neck tube.

24.

CHECK REFUELING CONTROL VALVE

Refer to

EC-1748, "ON BOARD REFUELING VAPOR RECOVERY (ORVR)"

OK or NG

OK

>> GO TO 25.

NG

>> Replace refueling control valve with fuel tank.

25.

CHECK FUEL LEVEL SENSOR

Refer to

DI-18, "FUEL LEVEL SENSOR UNIT CHECK"

.

OK or NG

OK

>> GO TO 26.

NG

>> Replace fuel level sensor unit.

26.

CHECK INTERMITTENT INCIDENT

Refer to

EC-1297, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"

.

>> INSPECTION END.