WARNING: This page is about a different car, the 2003 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Locating Accelerator Pedal Position Sensor
Courtesy of GENERAL MOTORS CORP.
Fig 2: Locating Camshaft Position Sensor
Courtesy of GENERAL MOTORS CORP.
Fig 3: Locating ECM, Ignition Coil & Throttle Position Sensors
Courtesy of GENERAL MOTORS CORP.
Fig 4: Locating Engine Coolant Temperature Sensor, Camshaft Position Sensor & EVAP Canister Purge Valve