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

Front of Engine - LZ4


Object Number: 1829688  Size: LF
(1)Transmission Control Module (TCM)
(2)C100
(3)Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1
(4)C130
Figure 2:

Left Side of Engine-LZ4


Object Number: 1829701  Size: LF
(1)G106
(2)Park / Neutral Position (PNP) Switch
(3)Fuse Block - Underhood
(4)C108
(5)Engine Control Module (ECM)
(6)C103
(7)G105
Figure 3:

Left Rear of Engine Compartment


Object Number: 1843416  Size: MF
(1)Coolant Level Switch
(2)Battery
(3)Electronic Brake Control Module (EBCM)
(4)C101
(5)G103
(6)Fuse Block - Underhood
Figure 4:

Lower Left Front of Engine


Object Number: 1265648  Size: MF
(1)Engine Oil Pressure (EOP) Sensor
(2)Starter
(3)Starter Solenoid
(4) Knock Sensor (KS) 2
Figure 5:

Top View of Engine-LZ4


Object Number: 1829714  Size: LF
(1)Fuel Injector 6
(2)Fuel Injector 5
(3)Fuel Injector 4
(4)Camshaft Position (CMP) Sensor
(5)Fuel Injector 1
(6)Fuel Injector 2
(7)Fuel Injector 3
Figure 6:

Top of Engine


Object Number: 741412  Size: SH
(1)Fuel Injector 1
(2)Fuel Injector 3
(3)Fuel Injector 5
(4)Fuel Rail
(5)Fuel Injector 6
(6)Fuel Injector 4
(7)Fuel Injector 2
Figure 7:

Left Rear of Engine


Object Number: 1843432  Size: MF
(1)G105
(2)Park Neutral Position (PNP) Switch
Figure 8:

Front View of Engine-LZ4


Object Number: 1829705  Size: LF
(1)MAF / IAT Sensor
(2)Evaporative Emission (EVAP) Canister Purge Solenoid Valve
(3)Throttle Actuator Control (TAC) Module
(4)Fuse Block - Underhood
(5)Engine Control Module (ECM)
(6)Transmission Control Module (TCM)
(7)C100
(8)Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1
(9)Starter
(10)Engine Oil Pressure (EOP) Sensor
(11)Heated Oxygen Sensor (HO2S) Bank 2 Sensor 2
(12)Knock Sensor 2
Figure 9:

Rear View of Engine-LZ4


Object Number: 1829711  Size: LF
(1)MAP Sensor
(2)Ignition Control Module (ICM)
(3)Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1
(4)Knock Sensor 1
(5)Engine Coolant Temperature (ECT) Sensor
(6)Crankshaft Position (CKP) Sensor
(7)Vehicle Speed Sensor (VSS)
(8)Engine Oil Level Sensor
(9)Heated Oxygen Sensor (HO2S) Bank 1 Sensor 2
(10)Park / Neutral Position (PNP) Switch
Figure 10:

Below the Left Side of the I/P


Object Number: 1530115  Size: MF
(1)Brake Pedal Position Sensor
(2)Accelerator Pedal Position (APP) Sensor
(3)Accelerator Pedal
(4)Brake Pedal
Figure 11:

Behind the Catalytic Convertors


Object Number: 1265692  Size: MF
(1)Heated Oxygen Sensor (HO2S) Bank 1 Sensor 2
(2)Heated Oxygen Sensor (HO2S) Bank 2 Sensor 2
Figure 12:

Under Right Rear of Vehicle


Object Number: 1530186  Size: MF
(1)Evaporative Emission (EVAP) Canister
(2)Evaporative Emission (EVAP) Canister Vent Solenoid Valve
(3)Fuel Tank Filler Neck
Figure 13:

Top of Fuel Tank


Object Number: 1394468  Size: MF
(1)Fuel Tank Pressure (FTP) Sensor, Connector
(2)Fuel Pump and Sender Assembly
(3)Fuel Pump and Sender Assembly Connector
(4)Fuel Tank