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Home >> Kia >> 2016 >> Soul Base, Automatic Trans >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System Diagnosis - 1.6L (1 Of 3) >> DTC P0090: Fuel Pressure Regulator 1 Control Circuit/Open >> Wiring Inspection >> Control Circuit Inspection

Control Circuit Inspection

  1. Ignition "OFF".
  2. Disconnect Fuel Pressure Control Valve connector.
  3. Ignition "ON" and Engine "OFF".
  4. Measure voltage between Pin No. 1 (-), Pin No. 2 (+) terminal of FPCV harness connector and chassis ground. (component side).

    Specification: 

    FPR (-) Terminal: Approx. 0V

    FPR (+) Terminal: Approx. 0.8V

  5. Is the measured voltage within specification?

    YES 

    NO