cm 871 regen fail

[tree98]

for starters you need to do an egr tune up https://www.youtube.com/watch?v=FhJxpyS5MpY Those sensors must be replaced not cleaned. The IMAP in particular has the pressure sensor up inside it and you can't get to it to clean it.The readings your looking at could be incorrect if the sensors arent reading right. Replace the doser also, it may not be spraying properly, that could cause it to not get up to temp during a regen. When you say the dpf and doc were cleaned "properly" what exactly does that mean? How did you clean them?