Operation CHARM
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Chevy Truck
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1984
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S10/T10 P/U 2WD L4-119 1.9L VIN A 2-BBL
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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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Positions
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MPH
MPH
Displays vehicle speed by sensing pulses transmitted to the ECM from the
vehicle speed sensor
.