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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 155 (Engine Controls Self-Diagnostics - 5.7L - Bi-Fuel) >> Diagnostic Tests >> DTC P0106: Map/TP Sensor Performance/Range >> Test Description

Test Description

WARNING: This page is about a different car, the 2002 GMC Savana Special, 2002 GMC Savana Camper Special, 2002 GMC Savana, and 2002 Chevrolet Chevy Express. However, it is still accessible from the selected car via links, so may be relevant.

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

  1. 2

    This step tests the MAP sensors ability to correctly indicate barometric pressure.

    In order to determine the correct MAP sensor display of barometric pressure for any elevation perform either of the following:

    • Compare the recorded MAP sensor display value to the BARO display on a known-good vehicle.
    • Obtain the local weather service barometer reading (in. Hg). Multiply the barometer reading by 3.4. The result indicates the correct BARO value for your area.

  2. 3

    This step tests the MAP sensors ability to correctly indicate engine vacuum.

  3. 7

    This step indicates this sensor is currently functioning correctly. If you were sent to this diagnostic procedure from other service information return to that procedure now.

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