As I understand it.

A sensor such as the one on our DPF senses 3 things temp, pressure before and pressure after the SCR/DPF Now to the question.

Is sensor 1) has say 12v going to it. Post sensor output is say 4.0 to 5.0V to be in "correct operational mode/parameters".

Couldn't one wire up a set resistor to do the same thing?

To "temporarily" get you home without incurring a limp mode response from the ECM?