Rawze.com: Rawze's ISX Technical Discussion and more

That's what I was figuring that the differnital pressure sensor was telling the ECM and the ECM would say what to display.

I thought if it was a more accurate reading it would be a nice feature. Not necessarily needed just another gauge to display how things were doing.

The digital gauge in the Paccar Smartnav just mirrors the “soot load” parameter broadcast. You can find the same in Insite.

I have a Scangauge D, programmed the X-Gauges to read off the Detroit One-Box.
I can read DPF in/out/differential pressures. Inlet and outlet NOx sensor readings, DOC in and out temperatures, DPF out temperature, SCR temperatures. Low and high pressure fuel lines.