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Home >> Hyundai >> 2018 >> Ioniq Plug-In Hybrid >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (2 Of 3) (PHEV) >> DTC P043F: EVAP System Leak Detection Reference Orifice High Flow >> DTC Information >> DTC Detecting Condition
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DTC Information: DTC Detecting Condition

Item Detecting Condition Possible Cause
DTC Strategy
  • Monitoring reference orifice's pressure
  1. Evap. Emission System failure
  2. ELCM failure
Enable Conditions
  • Stop the vehicle (VSS 0mph/0kph)
  • Stop the engine (Engine 0 RPM)
  • Turn the ignition switch off
  • No related failures
  • No refueling during diagnosis
  • Ambient air pressure is higher than 75 kPa
  • ECM soaking time (engine stop) is longer than 5 hours
  • Ambient air temp.(AAT) is higher than 4°C (39.2°F)
  • Fuel level in the tank is less than 85%
  • Battery voltage is between 10V and 16V
Threshold Value
  • The value from ELCM pressure sensor is lower than the 1st or 2nd reference pressure value which varies by atmosphere pressure.
Diagnostic Time
  • Immediate
MIL ON Condition
  • 2 driving cycle