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Home >> Kia >> 2016 >> Optima SX Limited >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 95 (Engine Control System Diagnosis - 1.6L (1 Of 3) - Optima (Except HEV)) >> DTC P0091: Fuel Pressure Regulator 1 Control Circuit Low >> DTC Information >> DTC Detecting Condition

DTC Information: DTC Detecting Condition

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Item Detecting Condition Possible Cause
DTC Strategy
  • Electrical check
  1. Poor connection
  2. Short to ground in control circuit
  3. FPR
Enable Conditions
  • Battery voltage less than 16 V
Threshold Value
  • Short circuit to ground
Diagnostic Time
  • Continuous
MIL ON Condition
  • 3 driving cycles
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