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Nissan Frontier. Manual - part 555

P0453 EVAP CONTROL SYSTEM PRESSURE SENSOR

EC-791

< DTC/CIRCUIT DIAGNOSIS >

[VQ40DE FOR USA AND CANADA]

>> GO TO 12.

>> Replace EVAP control system pressure sensor. Refer to

FL-14, "Removal and Installation"

12.

CHECK DRAIN FILTER

Refer to

EC-791, "Component Inspection"

OK or NG

>> GO TO 13.

>> Replace drain filter.

13.

CHECK IF EVAP CANISTER IS SATURATED WITH WATER

1. Remove EVAP canister with EVAP canister vent control valve and EVAP control system pressure sensor

attached.

2. Check if water will drain from the EVAP canister.
Yes or No

Yes

>> GO TO 14.

>> GO TO 16.

14.

CHECK EVAP CANISTER

Weigh the EVAP canister with the EVAP canister vent control valve and EVAP control system pressure sensor

attached.

The weight should be less than 2.0 kg (4.4 lb).
OK or NG

>> GO TO 16.

>> GO TO 15.

15.

DETECT MALFUNCTIONING PART

Check the following.

• EVAP canister for damage

• EVAP hose between EVAP canister and drain filter for clogging or poor connection

>> Repair hose or replace EVAP canister. Refer to

FL-14, "Removal and Installation"

16.

CHECK INTERMITTENT INCIDENT

Refer to

GI-42, "Intermittent Incident"

>> INSPECTION END

Component Inspection

INFOID:0000000009481452

EVAP CONTROL SYSTEM PRESSURE SENSOR

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

Always replace O-ring with a new one.

2. Install a vacuum pump to EVAP control system pressure sensor.
3. Turn ignition switch ON and check output voltage between ECM terminal 102 and ground under the fol-

lowing conditions.

BBIA0558E

EC-792

< DTC/CIRCUIT DIAGNOSIS >

[VQ40DE FOR USA AND CANADA]

P0453 EVAP CONTROL SYSTEM PRESSURE SENSOR

CAUTION:

• Always calibrate the vacuum pump gauge when using it.
• Never apply below -93.3 kPa (-0.952 kg/cm

, -13.53 psi) or pressure over 101.3 kPa (1.033 kg/cm

14.59 psi).

4. If NG, replace EVAP control system pressure sensor.

DRAIN FILTER

1. Check visually for insect nests in the drain filter air inlet.
2. Check visually for cracks or flaws in the appearance.
3. Check visually for cracks or flaws in the hose.
4. Blow air into port A and check that it flows freely out of port B.
5. Block port B.
6. Blow air into port A and check that there is no leakage.
7. If NG, replace drain filter.

Applied vacuum kPa

(kg/cm

, psi)

Voltage V

Not applied

1.8 - 4.8

-26.7 (-0.272, -3.87)

2.1 to 2.5V lower than above value

PBIB3641E

P0455 EVAP CONTROL SYSTEM

EC-793

< DTC/CIRCUIT DIAGNOSIS >

[VQ40DE FOR USA AND CANADA]

P0455 EVAP CONTROL SYSTEM

On Board Diagnosis Logic

INFOID:0000000009481453

This diagnosis detects a very large leak (fuel filler cap fell off etc.) in EVAP system between the fuel tank and

EVAP canister purge volume control solenoid valve.

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

INFOID:0000000009481454

CAUTION:

Never remove fuel filler cap during the DTC Confirmation Procedure.

NOTE:

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

P0455
0455

EVAP control system
gross leak detected

EVAP control system has a very large leak such
as fuel filler cap fell off, EVAP control system
does not operate properly.

• Fuel filler cap remains open or fails to

close.

• Incorrect fuel tank vacuum relief valve
• Incorrect fuel filler cap used
• 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.
• Loose or disconnected rubber tube
• EVAP canister vent control valve and the

circuit

• EVAP canister purge volume control so-

lenoid valve and the circuit

• Fuel tank temperature sensor
• O-ring of EVAP canister vent control

valve is missing or damaged.

• EVAP control system pressure sensor
• Refueling EVAP vapor cut valve
• ORVR system leaks

PBIB3640E

EC-794

< DTC/CIRCUIT DIAGNOSIS >

[VQ40DE FOR USA AND CANADA]

P0455 EVAP CONTROL SYSTEM

• Check that EVAP hoses are connected to EVAP canister purge volume control solenoid valve prop-

erly.

• If DTC Confirmation Procedure has been previously conducted, always perform the following before con-

ducting the next step.

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.

• Open engine hood before conducting the following procedures.

WITH CONSULT

1. Tighten fuel filler cap securely until ratcheting sound is heard.
2. Turn ignition switch ON.
3. Turn ignition switch OFF and wait at least 10 seconds.
4. Turn ignition switch ON and select “DATA MONITOR” mode with CONSULT.
5. Check that the following conditions are met.

COOLAN TEMP/S: 0 - 70

°C (32 - 158°F)

INT/A TEMP SE: 0 - 60

°C (32 - 140°F)

6. Select “EVP V/S LEAK P0456/P1456” of “EVAPORATIVE SYSTEM” in “DTC WORK SUPPORT” mode

with CONSULT.

Follow the instructions displayed.

NOTE:

If the engine speed cannot be maintained within the range displayed on the CONSULT screen, go to

EC-

584, "Basic Inspection"

7. Check that “OK” is displayed.