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GMC
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2003
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Jimmy 2D Utility, Part Time, Automatic
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Repair and Diagnosis
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Engine Performance
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System
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Engine Controls - Self-Diagnostics - 4.3L
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Diagnostic Tests
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DTC P0102: MAF Sensor Circuit - Low Frequency
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Conditions For Running DTC
Conditions For Running DTC
Engine is running for more than 2 seconds.
Engine speed is more than 400 RPM.
Ignition 1 signal is more than 8 volts.
The MAF sensor frequency is stable for more than.7 second.