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Home >> Kia >> 2016 >> Sedona L >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (1 Of 3) >> DTC P0090: Fuel Pressure Regulator 1 Control Circuit / Open >> Wiring Inspection >> Control Circuit Inspection
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Control Circuit Inspection

■ Open & Short Circuit Inspection 

  1. IG "OFF" and disconnect FRP connector.
  2. IG "ON".
  3. Measure voltage between Pin No. 2 (High) terminal of FRP harness connector and chassis ground.
  4. Measure voltage between Pin No. 1 (Low) terminal of FRP harness connector and chassis ground.

    Specification: 

    FPR High Terminal Approx. 2.2V

    FPR Low Terminal Approx. 0V

  5. Is the measured voltage within specification?

    YES 

    NO