Everything is ok my dear friend , I am not mad to nobody...

This thing's standing:
Truck have particular filter - Diesel Particular Filter ( DPF ) and there is
one sensor DPS diferencial pressure sensor wich give 1.00V DC on output
when filter is clean - OK.After some time maybe 2 year or little more time
dependent how you use truck self cleaning sequence of filter is dead!
Now you must replace filter becouse sensor give info tu ECU to pressure is
bad.....
Truck lose power to iddle !
If you remove filter you need to thel ECU to filter is still there ;-) haha
And truck will work fine with false data of sensor ( your false reference 1.00V).That is my full story with happyend becouse I success make false reference!
Regards to you and all.