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

Front of Engine (Except L66)


Object Number: 1814210  Size: LF
(1)Powertrain Control Module (PCM)
(2)Transmission Control Module (TCM)
(3)Crankshaft Position (CKP) Sensor
(4)Engine Oil Pressure (EOP) Switch
(5)Knock Sensor
(6)Starter
(7)A/C Compressor Clutch
(8)Starter Generator
Figure 2:

Top of Engine


Object Number: 1814306  Size: LF
(1)Mass Air Flow (MAF) Sensor
(2) Camshaft Position (CMP) Actuator Solenoid - Intake
(3)Camshaft Position (CMP) Actuator Solenoid - Exhaust
(4)Ignition Coil Module 1
(5)Ignition Coil Module 2
(6)Ignition Coil Module 3
(7)Ignition Coil Module 4
(8)Throttle Actuator Control (TAC) Module
(9)Fuel Injector 4
(10)Fuel Injector 3
(11)Fuel Injector 2
(12)Fuel Injector 1
(13)Manifold Absolute Pressure (MAP) Sensor
Figure 3:

Rear of Engine


Object Number: 1814297  Size: LF
(1)Evaporative Emissions (EVAP) Canister Purge Solenoid
(2)Vehicle Speed Sensor (VSS)
(3)Heated Oxygen Sensor (HO2S) 2
(4)Heated Oxygen Sensor (HO2S) 1
(5)Park/Neutral Position (PNP) Switch
(6)Engine Coolant Temperature (ECT) Sensor
(7)G107
Figure 4:

Left Rear of Engine Compartment (LAT)


Object Number: 1760272  Size: LF
(1)C123 Engine Harness to Body Harness
(2)Transmission Control Module (TCM)
(3)Engine Control Module (ECM)
(4)Auxiliary Fuse Block - Underhood
(5)C110 Engine Harness to Forward Lamp Harness
(6)Fuse Block - Underhood
(7)Forward Lamp Harness
(8)C121 Body Harness to Forward Lamp Harness
(9)Body Harness
Figure 5:

Lower Left Side of I/P


Object Number: 1803405  Size: LF
(1)Cruise Release Switch
(2)Stop Lamp Switch
(3)Accelerator Pedal Position (APP) Sensor
(4)Clutch Start Switch (M/T)
Figure 6:

Fuel Tank Components


Object Number: 1803057  Size: LF
(1)Wheel Well - RR
(2)Fuel Tank Pressure (FTP) Sensor
(3)Fuel Pump and Sender Assembly - Primary
(4)Fuel Tank
(5)Fuel Pump and Sender Assembly - Secondary
(6)Evaporative Emissions (EVAP) Canister
(7)Evaporative Emissions (EVAP) Canister Vent Solenoid