If you have a DPF delete, what did you do with the air injection lines before and after the DPF? I asked the people I bought my DPF delete kit from, and they didn't really give me an answer. So, I just plugged the rubber lines. I was wondering if this could be why I keep getting regens. Even after a computer and regen reset from the dealer this AM I continue to get regen after regen. I just tried unplugging those air injection lines. I haven't driven it in town yet, but I don't really expect any difference. If it fixes the problem, I will repost.