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Firebird V8-5.7L VIN G
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Powertrain Management
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Computers and Control Systems
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Scan Tool Testing and Procedures
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Scan Tool Data Definitions - Powertrain Systems
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Desired Idle Speed
Desired Idle Speed
The scan tool displays a range of
0-3,187 RPM.
The
PCM
commands the desired
idle speed
. The PCM compensates for various engine loads based on engine coolant temperature in order to keep the engine at the desired speed.