Refueling Control Valve: Testing and Inspection

INSPECT FUEL CUTOFF VALVE AND FILL CHECK VALVE
a. Disconnect the purge line hose and EVAP line hose from the charcoal canister.
b. Disconnect the drain hose from the charcoal canister and plug the cap to the drain port.
c. Pressurize the purge port at 4 kPa (41 gf/sq.cm, 0.58 psi) and check that it is ventilated through the EVAP line hose.

HINT: In the condition that the fuel is full, as the float valve of the fill check valve is closed and has no ventilation, it is necessary to check the fuel amount (volume).

d. Check if there is anything stuck in the vent line hose and EVAP line hose.

If there is nothing stuck in them, replace the fuel cutoff valve and fill check valve.

e. Reconnect the purge line hose and EVAP line hose to the charcoal canister.