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2000
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Lumina V6-3.1L VIN J
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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, Normal Values and Definitions
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Scan Tool Data Definitions - Powertrain Systems
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Knock Retard
Knock Retard
Scan Tool Displays
0.0 degrees
to
25.5 degrees
. Indicates the amount of spark the
PCM
is removing from IC spark advance in response to the signal from the
knock sensors
.