DPF REGENERATION. DPF regeneration is the process of burning off accumulated soot from the DPF to prevent it from clogging and reducing the engine’s performance. When the soot builds up, the DPF’s backpressure increases, which can lead to a loss of power and fuel efficiency. To regenerate the DPF, three methods are available: passive However, the warm-up time of SCR during cold start is prolonged due to the presence of DPF. In addition, the passive regeneration of DPF reduces the proportion of NO 2 in the exhaust and weakens the performance of SCR. During the active regeneration of DPF, the heat generated rapidly has a negative impact on SCR (Lao et al. 2020). The SCR For context, I'm retired, drive short hops only, and therefore never trigger a passive regen. The Jeep has 10,600 miles. The Jeep has 10,600 miles. A few months ago my Jeep was regening about twice as often as usual and the DPF%s were bouncing around erratically, as opposed to increasing 1% at time. BMW ISTA-D DPF regeneration / replacement. BMW ISTA-D DPF regeneration / replacement. Regeneration lasted 23 miles. Speed during regen: 60 to 70mph. RPM: kept around 2k RPM. Ended at 1513 miles. Avg MPG during Regen: 10.1. Burned 2.1 gallons diesel during Regen. Big difference is regens on the 2011 were lasting around 5 to 7 miles verses 23 miles on the 2015 . Emergency Regeneration. Yellow or Red “REGEN REQUIRED” light comes “ON” Driver must choose one of the following options to perform this regeneration. If one of the following options is not completed, Limp Home Mode may be activated. Running Option 1: Operate vehicle above 30mph for approximately 20 minutes. Cikhgb. Also, the PCM may not kick the false-positive code. These are the signs that tell you to Regen the DPF. Things To Consider Before Forcing Regen 6.7 Powerstroke. Before you opt for the process of regenerating your 6.7-power stroke, you have to do a static. That will give you instructions about the preparation needed to perform the regen prior. Sadly sometimes diesel from the DPF regeneration process can leak into the sump oil (google it) diluting and degrading the oil and hence causing problems with the lubrication of the turbo bearings. Sometimes the oil level can rise to a point where the engine ‘runs away’. It can happen on any car which uses this type of DPF regeneration process. You can reset the learnt values for the DPF this should only be done when the filter has been renewed, but even when reset the counter will take some time but will re learn the figures again after a period of time, how exactly it does this I do not know, most likely an algorithm that takes data from various sensors to adjust the value according One one occasion I had the DPF taken off and hydro-cleaned, and red stuff came out (probably oxidation from old cleaner residue). I also had a camera inserted into the DPF and no issues were found, it was not condemned. In the computer menu, the DPF service counter should count down to indicate when the DPF should be replaced. 3. Low Oil Supply. An engine with insufficient oil is another potential cause of this issue. This is because the regeneration process won’t begin until you fill the engine up if there is less than a fourth of the recommended quantity of oil in it. The DPF is housed in a section of the tailpipe. As for the active regeneration, this occurs when the exhaust is not hot enough to eliminate the soot that has built up. Thus, the engine lets out a bit of fuel right into the exhaust stream. This boosts the temperatures that help to burn the fuel and soot away. Unfortunately, it may happen that the active and passive regens will fail.

how do you trigger a dpf regeneration