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

Front View of Engine - LY7


Object Number: 1830383  Size: LF
(1)G113
(2)Fuse Block - Underhood
(3)Engine Control Module (ECM)
(4)S199
(5)Transmission Control Module (TCM)
(6)Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1
(7)Knock Sensor 2
(8)Heated Oxygen Sensor (HO2S) Bank 2 Sensor 2
(9)A/C Compressor
(10)Engine Oil Pressure (EOP) Sensor
(11)Generator
(12)Engine Coolant Temperature (ECT) Sensor
Figure 2:

Front View of Engine - LY7


Object Number: 1829984  Size: LF
(1)G113
(2)S199
(3)C108
(4)C130
Figure 3:

Rear View of Engine - LY7


Object Number: 1829987  Size: LF
(1)G105
(2)Throttle Actuator Control (TAC) Module
(3)S198
(4)G108
(5)G111
Figure 4:

Top View of Engine - LY7


Object Number: 1830317  Size: LF
(1)Ignition Coil 1
(2)Fuel Injector 1
(3)Ignition Coil 3
(4)Fuel Injector 3
(5)Ignition Coil 5
(6)Fuel Injector 5
(7)Fuel Injector 6
(8)Ignition Coil 6
(9)Fuel Injector 4
(10)Ignition Coil 4
(11)Ignition Coil 2
(12)Fuel Injector 2
Figure 5:

Rear View of Engine - LY7


Object Number: 1830213  Size: LF
(1)Throttle Actuator Control (TAC) Module
(2)G108
(3)Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1
(4)Heated Oxygen Sensor (HO2S) Bank 1 Sensor 2
(5)Knock Sensor 1
(6)Crankshaft Position (CKP) Sensor
(7)G111
(8)G105
Figure 6:

Front View of Engine - LY7


Object Number: 1830270  Size: LF
(1)MAP Sensor
(2)Intake Manifold Tuning (IMT) Valve Solenoid
(3)Camshaft Position (CMP) Sensor - Bank 2 Intake
(4)Camshaft Position (CMP) Actuator Solenoid - Bank 2 Intake
(5)Camshaft Position (CMP) Sensor - Bank 2 Exhaust
(6)MAF / IAT Sensor
(7)Camshaft Position (CMP) Actuator Solenoid - Bank 2 Exhaust
(8)Camshaft Position (CMP) Sensor - Bank 1 Intake
(9)Camshaft Position (CMP) Actuator Solenoid - Bank 1 Exhaust
(10)Camshaft Position (CMP) Actuator Solenoid - Bank 1 Intake
(11)Camshaft Position (CMP) Sensor - Bank 1 Exhaust
(12)Evaporative Emission (EVAP) Canister Purge Solenoid Valve