Nissan Frontier. Manual - part 697

 

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Nissan Frontier. Manual - part 697

 

 

ON BOARD REFUELING VAPOR RECOVERY (ORVR)

EC-1359

< DTC/CIRCUIT DIAGNOSIS >

[VQ40DE FOR MEXICO]

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ON BOARD REFUELING VAPOR RECOVERY (ORVR)

System Description

INFOID:0000000009482040

From the beginning of refueling, the air and vapor inside the fuel tank go through refueling EVAP vapor cut

valve and EVAP/ORVR line to the EVAP canister. The vapor is absorbed by the EVAP canister and the air is

released to the atmosphere.

When the refueling has reached the full level of the fuel tank, the refueling EVAP vapor cut valve is closed and

refueling is stopped because of auto shut-off. The vapor which was absorbed by the EVAP canister is purged

during driving.

WARNING:

When conducting inspections below, always observe the following:

• Put a “CAUTION: FLAMMABLE” sign in workshop.

• Never smoke while servicing fuel system. Keep open flames and sparks away from work area.

• Always furnish the workshop with a CO

2

 fire extinguisher.

CAUTION:

• Before removing fuel line parts, carry out the following procedures:

- Put drained fuel in an explosion-proof container and put lid on securely.

- Release fuel pressure from fuel line. Refer to 

EC-1378, "Fuel Pressure Check"

.

- Disconnect battery negative cable.

• Always replace O-ring when the fuel gauge retainer is removed.

• Never kink or twist hose and tube when they are installed.

• Never tighten hose and clamps excessively to avoid damaging hoses.

• After installation, run engine and check for fuel leaks at connection.

• Never attempt to top off the fuel tank after the fuel pump nozzle shuts off automatically.

Continued refueling may cause fuel overflow, resulting in fuel spray and possibly a fire.

Diagnosis Procedure

INFOID:0000000009482041

SYMPTOM: FUEL ODOR FROM EVAP CANISTER IS STRONG.

1.

CHECK EVAP CANISTER

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

attached.

2. Weigh the EVAP canister with 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

OK

>> GO TO 2.

NG

>> GO TO 3.

PBIB1068E

EC-1360

< DTC/CIRCUIT DIAGNOSIS >

[VQ40DE FOR MEXICO]

ON BOARD REFUELING VAPOR RECOVERY (ORVR)

2.

CHECK IF EVAP CANISTER IS SATURATED WITH WATER

Does water drain from the EVAP canister?
Yes or No

Yes

>> GO TO 3.

No

>> GO TO 6.

3.

REPLACE EVAP CANISTER

Replace EVAP canister with a new one. Refer to 

FL-14, "Removal and Installation"

.

>> GO TO 4.

4.

CHECK DRAIN FILTER

Refer to 

EC-1362, "Component Inspection"

.

OK or NG

OK

>> GO TO 5.

NG

>> Replace drain filter.

5.

DETECT MALFUNCTIONING PART

Check the EVAP hose between EVAP canister and vehicle frame for clogging or poor connection.

>> Repair or replace EVAP hose.

6.

CHECK REFUELING EVAP VAPOR CUT VALVE

Refer to 

EC-1362, "Component Inspection"

.

OK or NG

OK

>> INSPECTION END

NG

>> Replace refueling EVAP vapor cut valve with fuel tank. Refer to 

FL-6, "Removal and Installation"

.

SYMPTOM: CANNOT REFUEL/FUEL ODOR FROM THE FUEL FILLER OPENING IS STRONG
WHILE REFUELING.

1.

CHECK EVAP CANISTER

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

attached.

2. Weigh the EVAP canister with 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

OK

>> GO TO 2.

NG

>> GO TO 3.

2.

CHECK IF EVAP CANISTER IS SATURATED WITH WATER

BBIA0558E

ON BOARD REFUELING VAPOR RECOVERY (ORVR)

EC-1361

< DTC/CIRCUIT DIAGNOSIS >

[VQ40DE FOR MEXICO]

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Does water drain from the EVAP canister?
Yes or No

Yes

>> GO TO 3.

No

>> GO TO 6.

3.

REPLACE EVAP CANISTER

Replace EVAP canister with a new one. Refer to 

FL-14, "Removal and Installation"

.

>> GO TO 4.

4.

CHECK DRAIN FILTER

Refer to 

EC-1362, "Component Inspection"

.

OK or NG

OK

>> GO TO 5.

NG

>> Replace drain filter.

5.

DETECT MALFUNCTIONING PART

Check the EVAP hose between EVAP canister and vehicle frame for clogging or poor connection.

>> Repair or replace EVAP hose.

6.

CHECK VENT HOSES AND VENT TUBES

Check hoses and tubes between EVAP canister and refueling control valve for clogging, kinks, looseness and

improper connection.
OK or NG

OK

>> GO TO 7.

NG

>> Repair or replace hoses and tubes.

7.

CHECK FILLER NECK TUBE

Check recirculation line for clogging, dents and cracks. 
OK or NG

OK

>> GO TO 8.

NG

>> Replace filler neck tube. Refer to 

FL-6, "Removal and Installation"

.

8.

CHECK REFUELING EVAP VAPOR CUT VALVE

Refer to 

EC-1362, "Component Inspection"

.

OK or NG

OK

>> GO TO 9.

NG

>> Replace refueling EVAP vapor cut valve with fuel tank. Refer to 

FL-6, "Removal and Installation"

.

9.

CHECK FUEL FILLER TUBE

Check filler neck tube and hose connected to the fuel tank for clogging, dents and cracks.
OK or NG

OK

>> GO TO 10.

NG

>> Replace fuel filler tube. Refer to 

FL-6, "Removal and Installation"

.

10.

CHECK ONE-WAY FUEL VALVE-I

Check one-way valve for clogging.
OK or NG

OK

>> GO TO 11.

BBIA0558E

EC-1362

< DTC/CIRCUIT DIAGNOSIS >

[VQ40DE FOR MEXICO]

ON BOARD REFUELING VAPOR RECOVERY (ORVR)

NG

>> Repair or replace one-way fuel valve with fuel tank. Refer to 

FL-6, "Removal and Installation"

.

11.

CHECK ONE-WAY FUEL VALVE-II

1. Make sure that fuel is drained from the tank.

2. Remove fuel filler tube and hose.

3. Check one-way fuel valve for operation as follows.

When a stick is inserted, the valve should open, when removing

stick it should close.

Do not drop any material into the tank.

OK or NG

OK

>> INSPECTION END

NG

>> Replace fuel filler tube or replace one-way fuel valve

with fuel tank. Refer to 

FL-6, "Removal and Installation"

.

Component Inspection

INFOID:0000000009482042

REFUELING EVAP VAPOR CUT VALVE

 With CONSULT

1. Remove fuel tank. Refer to 

FL-6, "Removal and Installation"

.

2. Drain fuel from the tank as follows:
a. Remove fuel feed hose located on the fuel gauge retainer.
b. Connect a spare fuel hose, one side to fuel gauge retainer where the hose was removed and the other

side to a fuel container.

c.

Drain fuel using “FUEL PUMP RELAY” in “ACTIVE TEST” mode with CONSULT.

3. Check refueling EVAP vapor cut valve for being stuck to close as follows.

Blow air into the refueling EVAP vapor cut valve (from the end of EVAP/ORVR line hose), and check that

the air flows freely into the tank.

4. Check refueling EVAP vapor cut valve for being stuck to open as follows.
a. Connect vacuum pump to hose end.
b. Remove fuel gauge retainer with fuel gauge unit.

Always replace O-ring with new one.

c.

Turn fuel tank upside down.

d. Apply vacuum pressure to hose end [

−13.3 kPa (−100 mmHg, −3.94 inHg)] with fuel gauge retainer

remaining open and check that the pressure is applicable.

 Without CONSULT

SEF665U

BBIA0568E

 

 

 

 

 

 

 

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