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Home >> Kia >> 2016 >> Cadenza Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (1 Of 3) >> DTC P0090: Fuel Pressure Regulator 1 Control Circuit/Open >> Component Inspection

Component Inspection

■ Check fuel pressure regulator (spill valve) resistance 

  1. IG "OFF" and disconnect fuel pressure regulator (spill valve) connector.
  2. Measure resistance between High and Low control terminals of fuel pressure regulator (spill valve). (Component Side)

    Specification:  1.035 ~ 1.265Ω [23°C (73°F)]

  3. Is the measured resistance within specification?

    YES 

    • Substitute with a known - good IDB and check for proper operation.

If the problem is corrected, replace IDB and go to "VERIFICATION OF VEHICLE REPAIR " procedure.

NO