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Chevrolet
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2003
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Impala LS
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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 Self-Diagnostics - 3.8L
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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 cranking or running.
Engine speed is more than 50 RPM.
Ignition 1 signal is greater than 8 volts.
Idle Air Control (IAC) position is more than 5 counts.
Conditions are present for greater than 0.5 second.