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Home >> Hyundai >> 2008 >> Azera GLS >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (1 Of 2) >> DTC Troubleshooting Procedures >> DTC P0105 Manifold Absolute Pressure/Barometric Pressure Circuit >> Component Inspection

Component Inspection

  1. Check MAPS Performance
    1. IG "OFF" and install scantool.
    2. Connect probe to MAPS and TPS to check signal waveform by using oscilloscope function.
    3. ENG "ON" and monitor signal waveform during acceleration and deceleration.

      SPECIFICATION: 

      PRESSURE SPECIFICATIONS

      Pressure (kPa)  20 35 60 95 101.32
      Voltage (V)  0.789 1.382 2.369 3.75 4
      Tolerance (V)  ± 0.045
      Fig 1: Identifying Signal Waveform
      G04884383Courtesy of HYUNDAI MOTOR CO.
    4. Is the measured signal waveform (MAP/TPS Rationality) O.K?

      YES 

      NO 

      • Substitute with a known - good MAPS and check for proper operation. If the problem is corrected, replace MAPS and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
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