Nissan Versa

 Sedan Service Manual

Engine » Engine control system (EC) » On board refueling vapor recovery (ORVR)
Component Inspection (Refueling EVAP vapor cut valve)

1.INSPECTION START

Do you have CONSULT?

YES >> GO TO 2.

NO >> GO TO 3.

2.CHECK REFUELING EVAP VAPOR CUT VALVE

With CONSULT

1. Remove fuel tank. Refer to FL, "Removal and Installation".
2. Drain fuel from the tank as per the following:

• Remove fuel feed hose located on the fuel gauge retainer.
• Connect a spare fuel hose, one side to fuel gauge retainer where the hose was removed and the other side to a fuel container.
• Drain fuel using "FUEL PUMP RELAY" in "ACTIVE TEST" mode of "ENGINE" using CONSULT.

3. Check refueling EVAP vapor cut valve for being stuck to close as per the following.

   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 per the following.

• Connect vacuum pump to hose end.
• Remove fuel gauge retainer with fuel gauge unit.

Always replace O-ring with new one.

• Put fuel tank upside down.
• Apply vacuum pressure to hose end [−13.3 kPa (−0.136 kg/cm3, −1.93 psi)] with fuel gauge retainer remaining open and check that the pressure is applicable.

1. Filler tube 2. Recirculation line 3. EVAP/ORVR line 4. Vacuum/pressure handy pump 5. Fuel tank

Is the inspection result normal?

YES >> INSPECTION END

NO >> Replace refueling EVAP vapor cut valve with fuel tank. Refer to FL, "Removal and Installation".

3.CHECK REFUELING EVAP VAPOR CUT VALVE

Without CONSULT

1. Remove fuel tank. Refer to FL "Removal and Installation".
2. Drain fuel from the tank as per the following:

• Remove fuel gauge retainer.
• Drain fuel from the tank using a handy pump into a fuel container.

3. Check refueling EVAP vapor cut valve for being stuck to close as per the following.

   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 per the following.

• Connect vacuum pump to hose end.
• Remove fuel gauge retainer with fuel gauge unit.

Always replace O-ring with new one.

• Put fuel tank upside down.
• Apply vacuum pressure to hose end [−13.3 kPa (−0.136 kg/cm3, −1.93 psi)] with fuel gauge retainer remaining open and check that the pressure is applicable.

1. Filler tube 2. Recirculation line 3. EVAP/ORVR line 4. Vacuum/pressure handy pump 5. Fuel tank

Is the inspection result normal?

YES >> INSPECTION END

NO >> Replace refueling EVAP vapor cut valve with fuel tank .Refer to FL, "Removal and Installation".

Component Inspection (Drain filter)

1.CHECK 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.

Is the inspection result normal?

YES >> INSPECTION END

NO >> Replace drain filter.

Diagnosis Procedure

Component Inspection (Refueling EVAP vapor cut valve)