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Home › Kia › 2012 › Rio EX, 4D Hatchback › Repair and Diagnosis › Engine Performance › System › Engine Control System Diagnosis (1 Of 2) › 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. Short to ground in control circuit
  3. FPR
Enable Conditions
  • -
Threshold Value
  • Open
Diagnostic Time
  • Continuous
MIL ON Condition
  • 2 driving cycle
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