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Home >> Genesis >> 2018 >> G80 3.8, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis - 3.8L (1 Of 3) >> DTC P0090: Fuel Pressure Regulator 1 Control Circuit/Open >> Wiring Inspection >> Control Circuit Inspection >> Open Check
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Open Check

  1. IG "OFF" & Disconnect fuel pressure control valve (FPCV) connector.
  2. IG "ON".
  3. Measure voltage between high/low terminal of fuel pressure control valve (FPCV) harness connector and chassis ground.

    Specification:  High - approx. 2.3V, Low - approx. 0V

  4. Is the measured voltage within specification?

    YES 

    NO