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

Rear of the Engine Compartment Components (LLW)


Object Number: 2174812  Size: LF
(1)B116 Water in Fuel Sensor
(2)B154 Diesel Particulate Filter Pressure Sensor
Figure 2:

Front of the Engine Components (LLW)


Object Number: 2174817  Size: LF
(1)B34 Engine Coolant Temperature Sensor
(2)B47B Fuel Rail Pressure Sensor
(3)B111 Boost Pressure Sensor
(4)B23 Camshaft Position Sensor
(5)Q38 Throttle Body
(6)Q18 Fuel Pressure Regulator
(7)G13 Generator
Figure 3:

Rear of the Engine Components (LLW)


Object Number: 2174818  Size: LF
(1)Q17D Fuel Injector 4
(2)Q17C Fuel Injector 3
(3)Q17B Fuel Injector 2
(4)Q17A Fuel Injector 1
(5)Q14 Exhaust Gas Recirculation (EGR) Valve
(6)B37 Engine Oil Pressure Switch
(7)M91 Boost Pressure Actuator
(8)B16 Backup Lamp Switch
(9)B26 Crankshaft Position Sensor