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

Exhaust Gas Recirculation (EGR), Idle Air Control (IAC), and Engine Sensors


Object Number: 1248517  Size: LF
(1)Idle Air Control (IAC) Valve
(2)Throttle Position (TP) Sensor
(3)Knock Sensor (KS)
(4)Exhaust Gas Recirculation (EGR) Valve
(5)Vehicle Speed Sensor (VSS)
(6)Engine Coolant Temperature (ECT) Sensor
Figure 2:

Fuel Injection and Air Cleaner


Object Number: 1251622  Size: LF
(1)Air Cleaner
(2)Intake Air Temperature (IAT) Sensor
(3)Throttle Body
(4)Fuel Injector 1
(5)Fuel Rail
(6)Electronic Ignition (EI) System Coil
(7)Fuel Injector 2
(8)Fuel Injector 3
(9)Fuel Injector 4
Figure 3:

EVAP, Manifold Absolute Pressure (MAP), Crankshaft Position (CKP), and Camshaft Position (CMP)


Object Number: 1480151  Size: LF
(1)Evaporative Emissions (EVAP) Canister Purge Solenoid Valve
(2)Manifold Absolute Pressure (MAP) Sensor
(3)Engine Control Module (ECM)
(4)Crankshaft Position (CKP) Sensor
(5)Camshaft Position (CMP) Sensor
Figure 4:

Oxygen Sensors (O2S)


Object Number: 1480152  Size: LF
(1)Heated Oxygen Sensor (HO2S)1
(2)Heated Oxygen Sensor (HO2S) 2
(3)Oxygen Sensors (O2S)
(4)Oil Pressure Switch
(5)Rough Road Sensor
Figure 5:

Fuel Tank


Object Number: 1467212  Size: LF
(1)Fuel Pump/Sender
(2)Fuel Filter
(3)Fuel Tank