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Home › Hyundai › 2014 › Azera Base › Repair and Diagnosis › Engine Performance › System › Engine Control System Diagnosis (1 Of 3) › DTC P0090: Fuel Pressure Regulator 1 Control Circuit/Open › General Information › DTC Detecting Condition

General Information: DTC Detecting Condition

Item Detecting Condition Possible cause
DTC Strategy
  • Signal check
  1. Poor Connection
  2. Open in fuel pressure regulator (spill valve) circuit
Enable Conditions
  • No disabling Faults Present
  • Normal IDB supply voltage
Threshold value
  • Open circuit
Diagnosis Time
  • 5 sec.
MIL On Condition
  • 2 Drive Cycles
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