Regenerating every 150 miles

I have a 2012 Int Prostar Maxx 13 with 360k, just had the DPF removed, clean and burned and I replaced the pressure sensor, the one on top of the filter. The truck requires Regen between 100 to 160 miles when I drive in the city (I'm a local driver in Los Angeles traffic ), the truck doesn't like it when I'm going up hills or when I use the engine break or when I idle in those instances it request Regen even sooner, when I go up hills it gives me the flashing light without giving me the solid light.
When I drive long to another state it doesn't ask for any regeneration, only when running local.
I did a dyno test last week and they told me all is ok. Any recommendations? ?. Thanks

 

The olnly sensor that it was changed is the one in the picture and I think that one it's the pressure sensor, it's mounted on the muffler upright pipe DPF.

Which is the ash box?

 

They removed the whole filter and took it apart, 2 pieces were taken to be cleaned and cooked and that sensor was put new. The Dozer was not touched,

 

HEAVYD,
I have seen in other post that you help them with engine info when they provide you with vin#. here is mine CN543054 would you be so kind to give me engine info. thanks

 

my truck broke down going up hill, the line to the injector 4 blew out, stripped the thread of the line and the fuel high pressure unit,
$700 for the tow and $2500 for the repair, not my week.