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Home >> Chevrolet >> 2001 >> Impala V6-3.4L VIN E >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Testing and Inspection >> Scan Tool Testing and Procedures >> Scan Tool Data, Normal Values and Definitions >> Scan Tool Data Definitions - Powertrain Systems >> Engine Speed

Engine Speed

The scan tool range is 0 to 9999 RPM. The engine speed is computed by the PCM from the 3 X reference input. The engine speed should remain close to desired idle under various engine loads with the engine idling.
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