DTC Diagnosis Procedure

WARNING: This page is about a different variant/trim than selected.

INSPECTION START
Check whether the following symptoms are present.

A: Fuel odor from EVAP canister is strong.

B: Cannot refuel/Fuel odor from the fuel filler opening is strong while refueling.

Which symptom is present?

A

GO TO 2.

B

GO TO 7.
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 2.5 kg (5.5 lb).
Is the inspection result normal?

YES

GO TO 3.

NO

GO TO 4.
CHECK IF EVAP CANISTER IS SATURATED WITH WATER
Check if water will drain from EVAP canister (1).

Courtesy of NISSAN NORTH AMERICA, INC.
- EVAP canister vent control valve (2)
Does water drain from the EVAP canister?

YES

GO TO 4.

NO

GO TO 6.
REPLACE EVAP CANISTER
Replace EVAP canister with a new one.

GO TO 5.
DETECT MALFUNCTIONING PART
Check the EVAP hose between EVAP canister and vehicle frame for clogging or poor connection.

Repair or replace EVAP hose.
CHECK REFUELING EVAP VAPOR CUT VALVE
Refer to Component Inspection (EVAP Vapor Cut Valve) .

Is the inspection result normal?

YES

INSPECTION END

NO

Replace refueling EVAP vapor cut valve with fuel tank.
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 2.5 kg (5.5 lb).
Is the inspection result normal?

YES

GO TO 8.

NO

GO TO 9.
CHECK IF EVAP CANISTER IS SATURATED WITH WATER
Check if water will drain from EVAP canister (1).

Courtesy of NISSAN NORTH AMERICA, INC.
- EVAP canister vent control valve (2)
Does water drain from the EVAP canister?

YES

GO TO 9.

NO

GO TO 11.
REPLACE EVAP CANISTER
Replace EVAP canister with a new one.

GO TO 10.
DETECT MALFUNCTIONING PART
Check the EVAP hose between EVAP canister and vehicle frame for clogging or poor connection.

Repair or replace EVAP hose.
CHECK VENT HOSES AND VENT TUBES
Check hoses and tubes between EVAP canister and refueling control valve for clogging, kinks, looseness and improper connection.

Is the inspection result normal?

YES

GO TO 12.

NO

Repair or replace hoses and tubes.
CHECK FILLER NECK TUBE
Check recirculation line for clogging, dents and cracks.

Is the inspection result normal?

YES

GO TO 13.

NO

Replace filler neck tube.
CHECK REFUELING EVAP VAPOR CUT VALVE
Refer to Component Inspection (EVAP Vapor Cut Valve) .

Is the inspection result normal?

YES

GO TO 14.

NO

Replace refueling EVAP vapor cut valve with fuel tank.
CHECK FUEL FILLER TUBE
Check filler neck tube and hose connected to the fuel tank for clogging, dents and cracks.

Is the inspection result normal?

YES

GO TO 15.

NO

Replace fuel filler tube.
CHECK ONE-WAY FUEL VALVE-I
Check one-way fuel valve for clogging.

Is the inspection result normal?

YES

GO TO 16.

NO

Repair or replace one-way fuel valve with fuel tank.

CHECK ONE-WAY FUEL VALVE-II

Check that fuel is drained from the tank.
Remove fuel filler tube and hose.

Check one-way fuel valve for operation as per the following.

Courtesy of NISSAN NORTH AMERICA, INC.

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

Do not drop any material into the tank.

Is the inspection result normal?

YES

INSPECTION END

Replace fuel filler tube or replace one-way fuel valve with fuel tank.