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Home >> Chevrolet >> 2002 >> Impala LS >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Self-Diagnostics - 3.8L >> Diagnostic Tests >> DTC P0101: MAF System Performance >> Test Description
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Test Description

The numbers below refer to the step numbers in the diagnostic procedures.

  1. 4

    This step determines if the MAP sensor pressure is within the proper range at idle.
  2. 5

    This step determines if the MAP sensor responds properly to the change in manifold pressure.
  3. 6

    This step determines if the TP sensor is operating properly.
  4. 7

    This step determines if any mechanical faults have caused this DTC to set.