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

Front of the Engine - LY7


Object Number: 1832321  Size: LF
(1)Engine Coolant Temperature (ECT) Sensor
(2)Throttle Actuator Control (TAC) Module
(3)Starter Motor
(4)Knock Sensor (KS) 2
(5)A/C Compressor Clutch
(6)Engine Oil Pressure (EOP) Switch
(7)Generator
Figure 2:

Top of the Engine - LZ4


Object Number: 1832322  Size: LF
(1)Ignition Control Module (ICM)
(2)Fuel Injector 3
(3)Fuel Injector 5
(4)Fuel Injector 4
(5)Fuel Injector 6
(6)Fuel Injector 2
(7)Camshaft Position (CMP) Sensor
(8)Generator
(9)Fuel Injector 1
Figure 3:

Lower Left of the Engine - LZ4


Object Number: 1832324  Size: LF
(1)Camshaft Position (CMP) Actuator Solenoid
(2)Throttle Actuator Control (TAC) Module
(3)Evaporative Emission (EVAP) Canister Purge Solenoid
(4)Knock Sensor (KS) 1
(5)Starter Motor
(6)Engine Oil Pressure (EOP) Sensor
(7)A/C Compressor Clutch