P2455 OBD II Trouble Code Diesel Particulate Filter Pressure Sensor A Circuit High

Symptoms of P2455 OBD II Trouble Code

  • Excessive black smoke from the exhaust
  • Increased engine temperatures
  • Higher than normal transmission temperatures
  • Diminished engine performance

Common Causes of P2455 OBD II Trouble Code

  • Exhaust leaks
  • Clogged DPF pressure sensor tubes/hoses
  • Open or shorted circuit/s in the DPF pressure sensor A circuit
  • Faulty DPF pressure sensor
  • The diesel exhaust fluid reservoir may be empty
  • Improper diesel exhaust fluid
  • Inept DPF regeneration
  • The active DPF regeneration system is inoperative

Severity of P2455 OBD II Trouble Code

Conditions that could lead to this code may also lead to internal engine or fuel system damage and should be considered urgent. Symptoms of a P2455 code may include: