P246C GMC code

Excessively high pressures on the inlet side indicate a restriction on the DPF. The PCM will set code P246C. The PCM may also limit power available from the engine to prevent damage to additional components. A vehicle with this code should be taken in to a repair shop for diagnosis.

What is P246C?

OBD II fault code P246C is a generic trouble code that is defined as “Diesel Particulate Filter Restriction – Forced Limited Power”, and is set when the PCM (Powertrain Control Module) detects a condition in which the diesel particulate filter is either clogged or restricted to the point where the exhaust backpressure …

How do I fix error code P2463?

How To Correct P2463 Diesel Particulate Filter Restriction – Soot Accumulation

  1. Repair or replace a damaged DPF and associated parts.
  2. Make sure a dirty or inadequate diesel exhaust fluid is corrected in the right away.
  3. Amendments should be made to fix a defective SCR controller or a programming error.

How does a DPF regenerate?

DPF active regeneration



Active regeneration happens when extra fuel is injected automatically as the filter reaches an approximately 45% full limit. The extra fuel raises the temperature of the exhaust and burns off the stored soot. Yet the journey has to be long enough to complete a full cycle.

What is a DPF system?

Diesel particulate filters (DPF) are devices that physically capture diesel particulates to prevent their release to the atmosphere. Diesel particulate filter materials have been developed that show impressive filtration efficiencies, in excess of 90%, as well as good mechanical and thermal durability.

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How do you clean a DPF filter?

Zitat von Youtube: Tune-up cleans by flushing particles out of the filter soot. And other residues are loosened. And pushed out by the exhaust. Fumes. After cleaning and regeneration.

What causes code P2463?

The engine computer (PCM) monitors the exhaust pressure before and after the Diesel Particulate Filter (DPF). Excessively high pressures on the inlet side indicate a restriction on the DPF. The PCM will set code P2463. The PCM may also limit power available from the engine to prevent damage to additional components.

How does diesel particulate filter cleaner work?

DPF cleaning involves the use of aqueous cleaning technology and specialist chemicals to reduce the soot emissions generated by your engine. Usually, your DPF removes soot automatically using passive regeneration. Our cleaning service removes the excess soot that is preventing regeneration from taking place.