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GMC
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2006
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Envoy 4.2 S, RWD
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Repair and Diagnosis
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Engine Performance
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System
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Engine Control System - 4.2L - DTC P0013 To P0134
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DTC P0102 or P0103
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DTC Descriptors
DTC Descriptors
DTC P0102
Mass Air Flow (MAF) Sensor Circuit Low Frequency
DTC P0103
Mass Air Flow (MAF) Sensor Circuit High Frequency