Operation CHARM
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Chevy Truck
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1987
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Suburban 1/2 Ton 2WD V8-305 5.0L
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Repair and Diagnosis
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Powertrain Management
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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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EGR Position
EGR Position
Indicates position of
EGR valve
pintle as voltage reading. Normal reading is .3-2 volts.