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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 330 (Engine Controls - Self-Diagnostics - 3.0L) >> Diagnostic Tests >> DTC P0101: Mass Airflow System Performance >> Test Description

Test Description

WARNING: This page is about a different car, the 2003 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.

The numbers refer to the step numbers on the diagnostic procedures:

  1. 4 -  This step will determine if the MAF sensor voltage is less than the proper range at idle.
  2. 5 -  This step will determine if the MAF sensor voltage is more than the proper range at idle.
  3. 6 -  This step will determine if the Throttle Position (TP) sensors are operating properly.
  4. 7 -  This step will determine if any mechanical faults have caused this DTC to set.
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