I have a 2016 Ram 2500 4x4 Regular cab 8ft bed Tradesman 6.7 cummins with 27,242 miles. The last few days it seems like she doesn't have any power so I put my code reader on it and its reading P2002 code but no check engine light is illuminated. I've been reading that the DPF could be clogged so I took it for a long ride on the highway and that seems to have helped. I never get any message saying the filter is full or regen in process. I do not idle for long periods or take frequent short trips. I would like to know what my next steps should be. Do I need to take it in? Is my DPF failing?