Festiva L4-81 1.3L SOHC EFI (1989)
temperature increases, overfilling ("topping off") can cause fuel overflow at the filler cap when the vehicle is standing or the cap is removed.
OVERFILL FLAPPER
Overfill Flapper Valve
The overfill flapper valve is located where the fuel tank filler neck meets the hose from the fuel filler neck. This valve helps prevent fuel overflow.
