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Home >> Kia >> 2017 >> Optima Plug-In Hybrid EX >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (1 Of 3) (PHEV) >> DTC P0191-00: Fuel Rail Pressure Sensor 'A' Circuit Range Performance >> DTC Information >> DTC Detecting Condition
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DTC Information: DTC Detecting Condition

Item Detecting Condition Possible Cause
DTC Strategy
  • Rationality Monitoring
  1. Poor Connector Connection
  2. Faulty Fuel Rail Pressure Sensor Circuit
  3. Faulty Fuel Rail Pressure Sensor
Enable Conditions
  • Engine speed higher than 512 RPM and lower than 4000 RPM
  • Mass Fuel Flow between 5mg/stk and 70mg/stk
Threshold Value
  • Fuel Pressure Value Input: Too high/low
Diagnostic Time
  • 8s
MIL ON Condition
  • 2 Driving Cycles
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