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HOMESERVICE MANUALSHYUNDAI2003XG350 LREPAIR AND DIAGNOSISENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROL SYSTEM DIAGNOSIS (1 OF 2)DIAGNOSTIC TESTSDTC P0107: MANIFOLD ABSOLUTE PRESSURE CIRCUIT LOW INPUTINSPECTION/REPAIRCOMPONENT INSPECTION
2003 Hyundai XG350 L

Component Inspection

2003 Hyundai XG350 LSECTION Component Inspection
  1. Check performance test.
    1. Ignition "OFF".
    2. Remove the MAP sensor and connect MAP sensor connector.
    3. Ignition "ON" & Engine "OFF".
    4. Using s hand-held vacuum pump, apply vacuum and measure the "MAP SENSOR" parameter on scantool.
      1. Specification:
      VOLTAGE SPECIFICATION CHART

      Applied Vacuum Output Voltage
      10 kPa (100 mbar, 1.45 psi) 0.06V
      5 kPa (150 mbar, 2.18 psi) 0.25V
      40 kPa (400 mbar, 5.8 psi) 1.3V
      80 kPa (800 mbar, 11.6 psi) 3V
      120 kPa (1200 mbar, 17.4 psi) 4.8V
    5. Is the parameter displayed within specification?

      YES

      • Go to  2 "Check PCM" as below.

      NO

      • Substitute with a known - good MAP and check for proper operation.

    If the problem is corrected, replace MAP and go to "VERIFICATION OF VEHICLE REPAIR " procedure.

  2. Check PCM.
    1. Ignition "OFF" & Engine "OFF".
    2. Connect scantool and Ignition "ON".
    3. Select simulation function on scantool.
    4. Simulate voltage at terminal 1 of MAP sensor signal connector.
      Fig 1: Scantool Display - MAP Sensor Signal Terminal Simulate Voltage
      G07377566
    5. Does the signal value of MAP sensor changes according to simulation voltage?

      YES

      • Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.

      NO

      • Substitute with a known - good PCM and check for proper operation.

    If the problem is corrected, replace PCM and go to "VERIFICATION OF VEHICLE REPAIR " procedure.

RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.