What should the DPF soot mass be?
Normally the DPF will regenerate by itself in a range of about 24-28g of soot. On normal driving this soot mass will oscillate between 1-2g and 25-30g. Between these values your DPF will work perfect.
What percentage does a DPF regenerate?
around 40 per cent
When the diesel particulate filter (DPF) reaches a pre-determined particulate matter (PM) fill level of around 40 per cent, the ECU activates a regeneration process which can inject fuel up to eight times more fuel per stroke to produce temperatures in excess of 550⁰C dry or 450⁰C with the passive system to incinerate …
How is soot calculated in a diesel engine?
One uses the differential pressure sensor to calculate the soot in the DPF and the other uses other engine data. If either of these reaches the threshold, a regeneration will be performed. A Service Regeneration is designed to lower the soot accumulation in the DPF in a very controlled way.
How much soot is in the particulate filter?
A pre-determined number of engine hours since the last regeneration. A calculated or measured soot mass of 100% in the particulate filter. When any of the above criteria are met, the ECM will perform a regeneration as soon as all the correct conditions are met.
How does the DPF calculate the soot level?
If the ECM cannot perform a regeneration, the ECM will only look at the soot mass to determine to display the Continue Driving DIC message or to set DTC P2463. The vehicle does not have a soot level sensor to determine how much soot is in the DPF. It uses algorithms to calculate the soot mass.
When does the ECM do a soot regeneration?
When any of the above criteria are met, the ECM will perform a regeneration as soon as all the correct conditions are met. If the ECM cannot perform a regeneration, the ECM will only look at the soot mass to determine to display the Continue Driving DIC message or to set DTC P2463.