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Home >> GMC >> 2002 >> Jimmy 2D Utility, Part Time, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 127 (Engine Controls - System & Component Testing) >> Engine Sensors & Switches >> Manifold Absolute Pressure Sensor (3.4L) >> Test Description

Test Description

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The number below refers to the step number in the diagnostic procedures.

  1. 2

    This step tests the MAP sensor's ability to correctly indicate BARO. The BARO varies with altitude and atmospheric conditions. 103 kPa is the approximate BARO displayed by the MAP sensor at or near sea level.