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

Engine Composite View (3400 Vin E)


Object Number: 371074  Size: LF
(1)Fuel Injector 16 Way Harness Connector
(2)Manifold Absolute Pressure (MAP) Sensor
(3)Exhaust Gas Recirculation (EGR) Valve
(4)Throttle Position (TP) Sensor
(5)Throttle Body
(6)Fuel Pressure Regulator
(7)Engine Oil Pressure Switch
(8)Knock Sensor (KS)
(9)24X CKP Sensor Harness Connector
(10)Positive Crankcase Ventilation (PCV) Valve
(11)Camshaft Position (CMP) Sensor Harness Connector
(12)Fuel Rail
(13)Upper Intake Manifold
Figure 2:

Engine Composite View (3400 VIN E)


Object Number: 531383  Size: LF
(1)Upper Intake Manifold
(2)Manifold Absolute Pressure (MAP) Sensor
(3)Secondary Ignition (Spark Plug) Wires
(4)Ignition Coil/Module Assembly
(5)Heated Oxygen Sensor (HO2S)
(6)7X Crankshaft Position (CKP) Sensor
(7)Exhaust Gas Recirulation (EGR)
(8)Throttle Position (TP) Sensor
(9)Fuel Feed and Return Pipes
(10)Throttle Body
(11)Idle Air Control (IAC)
(12)Positive Crankcase Ventilation (PCV)
(13)EVAP Purge Valve
(14)Camshaft Position (CMP) Sensor Harness Connector
Figure 3:

Multi Way Fuel Injector Harness Connector, Fuel Pressure Regulator, PCV Valve


Object Number: 607087  Size: MF
(1)Multi Way Fuel Injector Harness Connector
(2)Fuel Pressure Regulator
(3)Positive Crankcase Ventilation (PCV) Valve
Figure 4:

Top Left Side of Engine (3400 VIN E)


Object Number: 531485  Size: LF
(1)Exhaust Gas Recirculation (EGR) Valve
(2)Fuel Feed and Return Lines
(3)Idle Air Control (IAC) Valve
(4)EVAP Purge Valve
Figure 5:

Top Front of Engine (VIN E)


Object Number: 374674  Size: LF
(1)Mass Air Flow (MAF) Sensor
Figure 6:

Lower RH Front of Engine (VIN E)


Object Number: 327373  Size: LF
(1)Crankshaft Position (24X) Sensor
(2) Knock Sensor (KS)
(3)Engine Oil Pressure Sensor/Switch
(4)Fusible Links
(5)A/C Compressure Clutch Coil
Figure 7:

Engine Cooling Fans, Cooling Fans Harness (VIN E)


Object Number: 181273  Size: SF
(1)Engine Cooling Fans
(2)Engine Cooling Fan Jumper Harness
Figure 8:

Right Rear of Engine (VIN E)


Object Number: 374682  Size: LF
(1)Vehicle Speed Sensor
(2)Vehicle Speed Sensor Connector
Figure 9:

Left Side of Engine


Object Number: 281293  Size: LF
(1)G103
(2)C102
Figure 10:

Underhood Junction Block


Object Number: 641335  Size: MF