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Chevy Truck
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1999
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Venture V6-3.4L VIN E
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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 Definitions - Powertrain Systems
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EGR Duty Cycle
EGR Duty Cycle
Scan tool Range
0%
to
100%
. Represents the
PCM
commanded PWM duty cycle of the
Exhaust Gas Recirculation
(EGR)
valve.
0%
displayed indicates no EGR;
100%
displayed indicates full EGR.