The fuel vapors are routed:

WARNING: This page is about a different car, the 2004 Ford Ranger. However, it is still accessible from the selected car via links, so may be relevant.

From the fuel tank through the fill limiting vent valve and fuel vapor vent valves. The fuel vapor valves are part of the fuel tank assembly and cannot be serviced separately.
To the EVAP canister through a vapor line.
To the engine when the EVAP canister purge valve is opened by the PCM.