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2000
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Envoy 4WD V6-4.3L VIN W
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Repair and Diagnosis
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Powertrain Management
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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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CMP Retard
CMP Retard
Range (
0-90 degrees
): The
CMP
retard indicates a correction to the CMP sensor and the
CKP sensor
relationship caused by small tolerance variations or component misalignment.