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Home >> Chevrolet >> 2003 >> Blazer 2D Utility, 4WD, Automatic, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics - 4.3L >> Diagnostic Tests >> DTC P0101: Mass Airflow Sensor Performance >> Conditions For Setting DTC
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Conditions For Setting DTC

The PCM detects that the actual MAF sensor frequency signal is not within a predetermined range of the calculated MAF value for more than 4 seconds.

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