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

Module, Power, Ground, MIL, and Serial Data


Object Number: 2085805 Size: FS
Figure 2:

Engine Data Sensors - MAF and Engine Coolant Temperature Sensor


Object Number: 2085811 Size: FS
Figure 3:

5-Volt and Low Reference
Object Number: 2085809 Size: FS
Figure 4:

CMP Sensors and Solenoids, Knock Sensors, and Crankshaft Position Sensor
Object Number: 2085812 Size: FS
Figure 5:

Engine Data Sensors - Oxygen Sensors
Object Number: 2085813 Size: FS
Figure 6:

Engine Data Sensors - Electronic Throttle Controls
Object Number: 2085814 Size: FS
Figure 7:

Bank 1 Ignition Coils
Object Number: 2085816 Size: FS
Figure 8:

Bank 2 Ignition Coils
Object Number: 2085817 Size: FS
Figure 9:

Fuel Pump and Injectors
Object Number: 2085818 Size: FS
Figure 10:

Evaporative Emissions and Fuel Tank Pressure Sensor


Object Number: 2085820 Size: FS
Figure 11:

Controlled/Monitored Subsystems References
Object Number: 2085821 Size: FS