I have a problem with the Mazda 1.5 diesel engine mounted on a Mazda 3 with a total distance of approximately 103,000 km traveled almost entirely in extra-urban areas, which unfortunately starts the DPF regeneration every 35-40 km.
The control with TEXA station always shows differential pressure values ​​equal to zero, for any condition of use (both at minimum and at variable load), and this would lead me to consider the need to replace the differential pressure sensor.
However, I still have the doubt as to whether the extreme frequency of regenerations can be related to the aforementioned problem.
Thanks for the attention.