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Home >> Buick >> 2001 >> Century V6-3.1L VIN J >> 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 >> Knock Retard
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Knock Retard

Scan Tool Range- 0.0-25.5 degrees. Indicates the amount of timing the PCM is removing from IC spark advance in response to the signal from the knock sensors.
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