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Chevy Truck
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1999
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S10/T10 Blazer 2WD V6-4.3L VIN W
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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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Actual EGR Position
Actual EGR Position
Range -
(0-100%)
The Actual
EGR
Position indicates the actual
EGR valve
pintle position as a percentage. A fully closed valve would be displayed as 0%.