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

Power, Ground, Serial Data and MIL


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Figure 2:

Engine Data Sensors - MAF, Pressure and Temperature


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Figure 3:

Engine Data Sensors - Throttle Controls


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Figure 4:

Engine Data Sensors - Oxygen Sensors


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Figure 5:

Fuel Controls - Fuel Pump and Injectors (LDE)


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Figure 6:

Fuel Controls - Fuel Pump and Injectors (2H0)


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Figure 7:

Ignition Controls - Ignition Sensors


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Figure 8:

Ignition Controls - Ignition System


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Figure 9:

Engine Data Sensors - Actuators


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