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Home >> Cadillac >> 2006 >> STS V >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - 4.4L - DTC P0010 To P0175 >> DTC P0107 or P0108 >> Circuit/System Verification

Circuit/System Verification

  1. Verify the integrity of the MAP sensor system by inspecting for the following conditions:
    • Any damage to the MAP sensor housing
    • Any damage to the MAP sensor seal
    • A loose or improperly installed MAP sensor
    • A restriction in the vacuum source of the MAP sensor
  2. Ignition ON, observe the scan tool MAP, SC Inlet Pressure, and BARO sensor parameters. The readings should be within 5 kPa of each other and also the current BARO for your location. Refer to Altitude Versus Barometric Pressure .
  3. Engine running, observe the DTC information with a scan tool. DTCs P0107 or P0108 should not set.
  4. Operate the vehicle within the Conditions for Running the DTC. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.
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