Ahh, your app looks different than mine but I'm sure has the pretty much the functionality. I've been playing with mine for over a month but don't have a diesel (no diesel in US yet) and just like being able to know and graph things a lot. I'm not sure if there is a specific sensor for the diesel but would think that the cat temp sensor or one of the fuel trim or fuel usage sensors should show when an active dpf regen is happening. The sensor by the cat may be a good one to graph and set some kind of notification when it hits a certain temperature. I hope you can get some good data and share it if you do and I also hope Mazda fixes any diesel issues for you guys.
I would be interested in a future diesel so am trying to learn a bit by reading some of this stuff.
No, my app has not much functionality. Lot of parameters but very few are actualy read or displayed and none of special interest. It is ScanMaster for PPC and I use a HTC Leo, very disappointed.
The main reason for us to use the ELM327 is to detect and to predict when a regen is close to be launched, in orther to program a run where it not be interrupted.
One friend, you can read at the forum if you read spanish, had found the interesting data "exhaust gas temp." which may help to see that the regen is underway.
Another guy, in a french forum, has found better data: The Presion Delta FAP (DPF)
http://www.forum-auto.com/marques/mazda/sujet2935-175.htm#t155162
This is the best, when Delte closes to the value which trigger the regen...here we are!. But this was with a PC versin, very much complete, not way to use it while driving.
So, may be this is the best option
http://www.etrailer.com/Performance-Chip/Mazda/CX-5/2013/EP83730.html?vehicleid=20131166813
But quite expensive and not sure that it serves to the objective.