Its the difference between two pressure points on the DPF, I would guess in front and behind. Is a Data Point from the DPF.Huh?
he's using a obd2 reader and reading the differential pressure of the dpfHuh?
cant compare without knowing each vehicles load...how much boost, etc1500 rpm on a flat?
Yes. I haven't checked using my code reader, but what it should do is rise progressively as miles accrue since the last re-gen, then when it hits the programmed threshold, it will initiate the re-gen and drop again. In fact, I think any soot measurement for the DPF is just a value calculated based off the actual measurement of the differential pressure.Interesting post. I would imagine it varies based on soot load. That would be another relevant data point.