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Home › Kia › 2011 › Rio Base › Repair and Diagnosis › Engine Performance › System › Engine Control System Diagnosis (2 Of 2) › DTC P0451: Evaporative Emission System Pressure Sensor Switch Range Performance › Inspection Repair › Component Inspection

Component Inspection

  1. Check FTPS
    1. Key "ON".
    2. Disassemble FTPS. (Don't disconnect FTPS connector.)
    3. Connect the vacuum gauge.
    4. Measure the output voltage with using the vacuum gauge.
      CAUTION: Be careful while you do this procedure. FTPS would be damaged if you apply vacuum excessively.
      1. Specification :
        SPECIFICATION CHART

        FTPS Normal Parameter  
        Gauge pressure -66.66 hpa (-139.2 lbf/ft2 ) 0 hpa 66.66 hpa (139.2 lbf/ft2 )
        Voltage 0.5 V 2.5 V 4.5 V
        Fig 1: Measuring Output Voltage Between FTPS Connector Terminal And Ground
        G06830875Courtesy of KIA MOTORS AMERICA, INC.
    5. Is the measured voltage within specification?

      YES

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

      NO

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