That is good to know dead_dog, and I hope the smoke is now long long behind you 😂 Any time the DPF is replace all the adapted values and soot calculations need to be reset, otherwise the newly measured pressure sensor values will be confusing compared to the learnt values, especially as the old DPF will be heavily loaded with ash. I want to make it clear that not all D-CAT's or D4D's are the same, mine is the 12/2008 till 12/2012 150bhp version. There are 3 main types it would appear...