Refueling Vapor Recovery System: Testing and Inspection

ON BOARD REFUELING VAPOR RECOVERY (ORVR)

Component Inspection

REFUELING EVAP VAPOR CUT VALVE
1.INSPECTION START
Will CONSULT-III be used?
Will CONSULT-III be used?
YES - GO TO 2.
NO - GO TO 3.
2.CHECK REFUELING EVAP VAPOR CUT VALVE
With CONSULT-III
1. Turn ignition switch OFF.
2. Remove fuel tank. Removal And Installation.
3. 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 with CONSULT-III.
4. 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.
5. 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.
- Turn 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.





Is the inspection result normal?
YES - INSPECTION END
NO - Replace refueling EVAP vapor cut valve with fuel tank.
3.CHECK REFUELING EVAP VAPOR CUT VALVE
Without CONSULT-III
1. Turn ignition switch OFF.
2. Remove fuel tank. Removal And Installation.
3. 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.
4. 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.
5. 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.
- Turn 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.





Is the inspection result normal?
YES - INSPECTION END
NO - Replace refueling EVAP vapor cut valve with fuel tank.

DRAIN FILTER (LATE PRODUCTION)
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.