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Home >> Kia >> 2017 >> Optima Plug-In Hybrid EX >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (2 Of 3) (PHEV) >> DTC P1233-00: Low Pressure Fuel System - High Deviation Between Target And Current Pressure >> DTC Information >> DTC Detecting Condition

DTC Information: DTC Detecting Condition

Item Detecting Condition Possible Cause
DTC Strategy
  • Monitor the fuel pressure sensor's signal
  1. Poor Connection
  2. Fuel pressure sensor
  3. Fuel pump control module (FPCM)
Enable Conditions
  • Target fuel pressure is higher than 250kpa and lower than 600kpa
  • Engine Running
  • Battery voltage is higher than 10
Threshold Value
  • Fuel pressure sensor power voltage is less than 4.5V
Diagnostic Time
  • 2s
MIL On Condition
  • NO MIL
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