WARNING: This page is about a different car, the 2004 Nissan Frontier. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Locating Engine Control Component Parts (1 Of 3)
Courtesy of NISSAN MOTOR CO., U.S.A.
Fig 2: Locating Engine Control Component Parts (2 Of 3)
Courtesy of NISSAN MOTOR CO., U.S.A.
Fig 3: Locating Engine Control Component Parts (3 Of 3)