WARNING: This page is about a different car, the 2002 GMC Sonoma and 2002 Chevrolet S10 Pickup. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Locating Camshaft Position (CMP) Sensor , Crankshaft Position (CKP) Sensor & Knock Sensor (KS)
Courtesy of GENERAL MOTORS CORP.
Fig 2: Locating Engine Control Input Components (Left Upper Engine)