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Home >> Kia >> 2021 >> K5 GT >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis - 2.5L (2 Of 16) >> DTC P0091-00: Fuel Pressure Regulator 1 Control Circuit Low >> DTC Information >> DTC Detecting Condition

DTC Information: DTC Detecting Condition

Item Detecting Condition Possible Cause
DTC Strategy
  • Electrical inspection
  • Poor connector connection
  • Short to ground in control circuit
  • FPCV
Enable Conditions
  • Ignition "ON"
Threshold Value Case1
  • Short circuit
Case2
  • Short circuit to ground (the output voltage of low side is below 2.2 to 2.4V or current of high side is higher than 1.39 to 16.5A)
Diagnostic Time
  • Continuously
MIL ON Condition
  • 2 driving cycle
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