Symptom: Cannot Refuel/Fuel Odor From The Fuel Filler Opening Is Strong While Refueling

1. Remove EVAP canister with EVAP canister vent control valve and EVAP control system pressure sensor attached.
2. Weight the EVAP canister with EVAP canister vent control valve and EVAP control system pressure sensor attached.

The weight should be less than 1.9 kg (4.2 lb).

OK or NG 

1. OK: GO TO 2.
2. NG: GO TO  3

Does water drain from the EVAP canister?

Yes or No 

1. Yes : GO TO 3.
2. No : GO TO  5
Fig 1: Checking Water Drain From EVAP Canister
Courtesy of NISSAN MOTOR CO., U.S.A.

Replace EVAP canister with a new one.

1. : GO TO 4.

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

1. :Repair or replace EVAP hose.

Check hoses and tubes between EVAP canister and refueling control valve for clogging, kink, looseness and improper connection.

OK or NG 

1. OK: GO TO 6.
2. NG: Repair or replace hoses and tubes.

Check signal line and recirculation line for clogging, dents and cracks.

OK or NG 

1. OK: GO TO 7.
2. NG: Replace filler neck tube.

Refer to COMPONENT INSPECTION .

OK or NG 

1. OK: GO TO 8.
2. NG: Replace refueling EVAP vapor cut valve with fuel tank.

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

OK or NG 

1. OK: GO TO 9.
2. NG: Replace fuel filler tube.

Check one-way valve for clogging.

OK or NG 

1. OK: GO TO 10.
2. NG: Repair or replace one-way fuel valve with fuel tank.

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. 

Fig 2: Checking One-Way Fuel Valve

Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG 

1. OK: INSPECTION END 
2. NG: Replace fuel filler tube or replace one-way fuel valve with fuel tank.