Middle of last week however the EML came on. Plugged in my OBD and the code same up as DPF regeneration frequency - I interpreted as regen cycle hadn't kicked in for a while. So this weekend I stuck in a bottle of Wynns DPF cleaner and did a massive burn round the M25. I mean massive - 70mph ave for 40-60 mins. RPMs hovering around 2k and above. 8 11-30-2020, 10:50 PM. all ecu's can be safe to turn egr off and keep dpf on if you know what you're doing, problems with dpf are due to bad solutions and using automated programs like swiftec, with right knowledge there are no problems what so ever, even readiness can be passed. File Service. Stage 1 - 3 , manual DPF , EGR , Adblue, DTC. Sep 21, 2018. The Diesel Particulate Filter (DPF) is a ceramic brick with tiny passages that do two things. First, they trap the particulates or soot in the exhaust. Second, these passages create the surface area for the precious metal that helps to burn or break down the particulates. Think of it as a catalytic converter that traps and INJ_Q_TOT for all cylinders are around .13grms, and CYL_BAL for cylinders 1-5&8 @ .00grm, while cylinder #6 @.02gr and #7 @-.01grm. Attempted to perform a dymanic manual regen; at beginning of regen, DPF load % was 46%. After regen, this number droped to 40%, but after driving for 10 miles DPF load % increased to 70% before returning to shop. @mareng, do you maybe know, why from time to time after regeneration almost ends, pm_gen from 0 jumps to 1 and then regenerations stops. Pm_gen after few minutes drops to around 0.4,and this is it. Its a strange software glitch which I noticed even with 2.2 R2 motor in my previous mazda 6. During active DPF regeneration, real time particle number emissions were higher by a factor of 10 than the concentration without active regeneration. However, even when active regeneration occurred, the average particle number emissions were low, on the order of 90% below the level emitted by a 2004 technology engine. As explained above there are factors causing DPF failure. If not addressed the method of regeneration will not work. For people in 3rd world countries, regeneration may not work as desired because they cannot change their quality of fuel. Option 2: Buy New DPF – If Option 1 has failed the next option on the table would be to buy a new DPF Re: DPF removal, EGR delete and remap.AVON TUNING.. « Reply #9 on: September 28, 2015, 11:46:24 am ». It is indeed a failure but I think that at the moment the check is purely a visual one and if the filter has been removed and the casing welded up then it may not be apparent that the DPF has been removed and that is what people are aWx3MTL.