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Home >> Kia >> 2018 >> Cadenza Technology >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (4 Of 6) >> DTC P053F-00: Cold Start Fuel Pressure Performance >> System Inspection >> Check the Fuel Pressure Control Valve

Check the Fuel Pressure Control Valve

  1. Ignition "OFF".
  2. Connect VMI to KDS/GDS and select "Oscilloscope".
  3. Ignition "ON", Engine "ON"
  4. Measure signal waveform between Pin No. 2 (High) terminal of FPCV connector and chassis ground with VMI.
  5. Measure signal waveform between Pin No. 1 (Low) terminal of FPCV connector and chassis ground with VMI.

    Specification:  Refer to figures below

    Fig 1: Screen Display - Normal Waveforms Of FPCV At Engine Idle
    G12284446Courtesy of KIA MOTORS AMERICA, INC.
    Fig 2: Screen Display - Normal Waveforms Of FPCV At Approx. 2000RPM
    G12284447Courtesy of KIA MOTORS AMERICA, INC.
  6. Does the FPCV operate properly? (Check variation)

    YES 

    NO 

    • Carefully re-do this troubleshooting guide steps.
    • If no problems were found with the circuits or connectors, replace the FPCV and go to "VERIFICATION OF REPAIR " procedure.
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