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2000
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Firebird V8-5.7L VIN G
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Repair and Diagnosis
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Powertrain Management
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Computers and Control Systems
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Testing and Inspection
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Scan Tool Testing and Procedures
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Scan Tool Data Definitions - Powertrain Systems
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Engine Speed
Engine Speed
The scan tool displays a range of
0-10,000 RPM.
The
PCM
computes Engine speed from the ignition reference pulses. The Engine speed should remain close to desired idle under various engine loads with the engine idling.