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

Engine Controls Components - Bank 2


Object Number: 259142  Size: LF
(1)EGR Valve
(2)Fuel Injectors
(3)AIR Solenoid Valve (if equipped)
(4)Ignition Control Module and Cover
(5)Ignition Cassette
(6)Starter
(7)Generator
(8)A/C Compressor Clutch connector
(9)CMP Sensor
Figure 2:

Engine Controls Components - Bank 1


Object Number: 259152  Size: LF
(1)EGR Valve
(2)Fuel Injectors
(3)Vehicle Speed Sensor
(4)Engine Oil Pressure switch
(5)HO2S #1
(6)Ignition Control Module and Cover assembly
(7)Ignition Cassette
Figure 3:

Throttle Body Components


Object Number: 256321  Size: SH
(1)MAP sensor
(2)EVAP Canister Purge Solenoid Valve
(3)EGR Valve
(4)TP sensor
(5)IAC Valve
Figure 4:

Left Rear of Engine


Object Number: 256283  Size: SH
(1)Engine Coolant Temperature (ECT) Sensor
Figure 5:

Lower Left of Engine


Object Number: 350545  Size: SH
(1)Starter
(2)Crankshaft Position (CKP) Sensor
Figure 6:

Knock Sensor, Oil Pressure switch


Object Number: 256279  Size: SH
(1)Bank 1 Cylinder Head
(2)Engine Oil Pressure switch
(3)Knock sensor
Figure 7:

Bottom of Engine


Object Number: 256280  Size: SF
(1)Engine Oil Level Switch Mounting Bolt
(2)Engine Oil Level Switch
(3)Engine Oil Pan
Figure 8:

HO2S #2 (Post-Converter)


Object Number: 256240  Size: SF
(1)HO2S #2
(2)Catalytic Converter
Figure 9:

Front Left of Engine Compartment


Object Number: 296099  Size: SF
(1)Powertrain Control Module (PCM)