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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 P0087-00: Fuel Rail/System Pressure - Too Low >> DTC Information >> DTC Detecting Condition

DTC Information: DTC Detecting Condition

Item Detecting Condition Possible Cause
DTC Strategy
  • Rationality Monitoring
  1. Poor Connector Connection
  2. Clogged Fuel Filter
  3. Restricted Fuel Supply Line
  4. Fuel Leakage
  5. Faulty Fuel Pressure Regulator
  6. Faulty Fuel Rail Pressure Sensor
  7. Faulty ECM/PCM
Enable Conditions
  • Engine speed higher than 512 RPM and lower than 4000 RPM
  • Mass fuel flow higher than 0.008g/rev and lower than 0.12g/rev
  • 15s after engine start
  • Fuel trim active
Threshold Value
  • The rail pressure is lower than the target rail pressure
Diagnostic Time
  • 8s
MIL ON Condition
  • 2 Driving Cycles
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