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

Engine Composite View 3400


Object Number: 215905  Size: LF
(1)Fuel Injector Harness Connector
(2)Upper Intake Manifold
(3)24X CKP Sensor Connector
(4)7X CKP Sensor Harness
(5)CMP Sensor Harness connector
(6)HO2S1
(7)EVAP Purge Valve
(8)Ignition Control Module
(9)Ignition Coils
(10)EGR Valve
(11)Fuel Feed and Return Pipes
Figure 2:

Engine Composite View 3400


Object Number: 215907  Size: LF
(1)Fuel Injector Harness Connector
(2)MAP Sensor
(3)EGR Valve
(4)IAC Valve
(5)Fuel Feed and Return Pipes
(6)TP Sensor
(7)Throttle Body
(8)ECT Sensor
(9)Engine Oil Pressure Switch
(10)Knock Sensor (KS)
(11)PCV Valve
(12)Secondary Ignition Wires (Spark Plug Wires)
(13)Upper Intake Manifold
Figure 3:

Ignition Coils, Secondary Ignition Wires, HO2S1, EGR Riser Tube


Object Number: 297268  Size: SF
(1)Ignition Coils
(2)Secondary Ignition Wires
(3)HO2S1
(4)EGR Valve Riser Tube
Figure 4:

Engine Harness


Object Number: 297274  Size: MF
(1)Cam Sensor Harness Connector
(2)ECT Sensor Harness Connector
(3)Fuel Injectror Harness Connector
(4)Ignition Module Harness Connector
(5)HO2S1 Harness Connector
(6)EVAP Purge Valve Solenoid
(7)EGR Valve