WARNING: This page is about a different car, the 2006 Nissan Quest. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Identifying Evaporative Emission Line (1 Of 2)
Courtesy of NISSAN MOTOR CO., U.S.A.
NOTE:
Do not use soapy water or any type of solvent while installing vacuum hose or purge hoses.
Fig 2: Identifying Evaporative Emission Line (2 Of 2)