P2458 OBD II Trouble Code Diesel Particulate Filter Regeneration Duration

Symptoms of P2458 OBD II Trouble Code

  • Other DPF codes will likely accompany the P2458
  • Excessive black smoke from the exhaust
  • Inability to produce and maintain desired RPM levels
  • Increased engine temperature
  • Overheated DPR housing or other exhaust components

Common Causes of P2458 OBD II Trouble Code

  • Insufficient diesel exhaust fluid
  • Incorrect diesel exhaust fluid
  • Shorted or open wiring to the DPF injection system
  • Defective PCM or a PCM programming error
  • Defective DPF pressure sensor
  • Faulty exhaust pressure sensor

Severity of P2458 OBD II Trouble Code

Because DPF regeneration is crucial to maintaining desired exhaust back pressure, this code should be addressed with some degree of urgency. Symptoms of a P2458 code may include: