Cummins 400 ISL diesel particulate filter

Thanks for the replies. I had DPF in a couple of pickups and a regeneration problem only twice. Once with a new to me 10 Ford and with the 12 Dodge after we had been driving it in town. All things said and done, I hope it doesn't have the DPF, just another PITA to go wrong. I'll check the cosh out on Monday and if I can't figure it out, will call Cummins.