GM Service Manual Online
For 1990-2009 cars only
Figure 1:

Engine Controls Components-- Front and Rear


Object Number: 955993  Size: LF
(1)Spark Plugs
(2)Manifold Absolute Pressure (MAP) Sensor
(3)Knock Sensor (KS)
(4)Crankshaft Position (CKP) Sensor
(5)Engine Oil Pressure (EOP) Switch
(6)Generator Mounting Location
(7)A/C Compressor Clutch Location
(8)Heated Oxygen Sensor (HO2S) Sensor 1
(9)Engine Coolant Temperature (ECT) Sensor
Figure 2:

Engine Controls Components -- Front


Object Number: 953120  Size: LF
(1)Ignition Coil Housing
(2)Ignition Control Module (ICM)
(3)Fuel Rail and Injectors
(4)Evaporative Emissions (EVAP) Canister Purge Solenoid
(5)Throttle Body and Throttle Actuator Control (TAC) Module
Figure 3:

APP Sensor Location


Object Number: 1644247  Size: SF
(1)Accelerator Pedal Position (APP) Sensor