Fuel Evaporation System: Description
Fuel evaporation control system is designed to prevent fuel vapor from being emitted into the atmosphere. 911 Carrera and 911 Turbo system consists of a non-vented fuel tank filler cap, expansion tank, evaporation tank, charcoal canister, restrictor and connecting lines and hoses. On all models except 911 Carrera and 911 Turbo, system consists of control valve, rollover valve, switching valve, thermo valve and connecting lines and hoses.