P040F OBD II Trouble Code Exhaust Gas Recirculation Temperature Sensor A/B Correlation

Symptoms of P040F OBD II Trouble Code

  • There may be no symptoms when this code is stored
  • Diminished fuel efficiency
  • Coolant leak
  • Exhaust leak
  • Exhaust temperature sensor codes

Common Causes of P040F OBD II Trouble Code

  • Low engine coolant
  • Defective EGR temperature sensor/s
  • Faulty exhaust temperature sensor
  • Exhaust leaks
  • Clogged EGR cooler
  • Engine overheating

Severity of P040F OBD II Trouble Code

Since P040F is related to the exhaust gas recirculation system, it is not classified as a severe code.