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HOMESERVICE MANUALSGENESIS2021GV80 2.5T ADVANCED, AWDREPAIR AND DIAGNOSISENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROL SYSTEM DIAGNOSIS - 2.5L (6 OF 6)DTC P2BF0-F1: FUEL CONTROL SYSTEM 'B' TOO LEAN BANK 1DTC INFORMATION AND INSPECTIONDTC DETECTING CONDITION
2021 Genesis GV80 2.5T Advanced, AWD

DTC Information And Inspection: DTC Detecting Condition

2021 Genesis GV80 2.5T Advanced, AWDSECTION DTC Detecting Condition
Item Detecting Condition Detecting Condition
DTC Strategy
  • Long term fuel trim deviation reached max limit (too lean)
  1. Poor connector connection
  2. Air leakage
  3. Faulty fuel pressure
  4. Faulty MPI injector
Enable Condition
  • Engine coolant temperature is more than 56°C (132.8°F)
  • Barometric pressure is more than 75 kPa
  • Engine speed is more than 512 RPM
  • Air-fuel ratio control activated
    • Front O2 sensor ready (Measured O2 sensor tip temperature is more than 720°C (1328°F)
    • Integrated air mass flow after start is more than 20 to 600g
  • Stable driving condition:
    • Absolute value difference between actual engine speed and filtered engine speed is less than 300 RPM
    • Absolute value difference between actual air mass flow and filtered air mass flow is less than 70.01 mg/stroke
    • Absolute value difference between actual torque scale factor and filtered torque scale factor is less than 20%
    • Absolute value difference between actual lambda and filtered lambda is less than 4.5%
    • Integrated air mass flow is more than 5 to 60g
Threshold value
  • Additive long term trim value is less than -3.5 mg/stroke or multiplicative long term trim value is less than -25%
Diagnosis Time
  • Continuous
MIL ON Condition
  • 2 driving cycles
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.