Attached to each end of it are 2 small stainless tubes going to a sensor known as the dpf differential pressure sensor. That sensor tells the ecm how clogged up this soot. The differential pressure is 3. 9. The report i've got doesn't give the regen temps. All i have is the number of regens which is 461 with 4 incomplete.
I am leaning towards a faulty dpf diff. Normal and light duty cycles (fe above 5. 5 mpg), a calibration update enables the adoption of a variable dpf cleaning interval or a fixed dpf cleaning interval of up to 300,000 miles. The soot load in the aftertreatment diesel particulate filter is estimated using the aftertreatment differential pressure sensor and the calculated soot output of the engine. But before you do that monitor the dpf differential and outlet pressure voltage readings at key on engine off, idle and high idle. Let me know what your readings are please. Are there any other. The pressure differential switch is activated by: The pressure in the differential: The dpf differential pressure and dpf outlet pressure will vary greatly during normal operation and during a regen. There are not really any published guidelines on this. What is the issue or. Very knowledgable on series a thru d. The diesel particulate filter (dpf) pressure sensor on a peterbilt semi truck with a cummins isx engine is an important part of the emission control system. I have decided i'm going to measure the pressure differential when the dpf is about to regen and then right after. Will use a manometer to do so but i will have to make on.
What is the issue or. Very knowledgable on series a thru d. The diesel particulate filter (dpf) pressure sensor on a peterbilt semi truck with a cummins isx engine is an important part of the emission control system. I have decided i'm going to measure the pressure differential when the dpf is about to regen and then right after. Will use a manometer to do so but i will have to make on. This article provides an in. If the temps reach 525 or better and the inlet temp to the dpf stalls around 800 or is very very slow to reach 1000+ then something is wrong with the injector or doc. Connect the aftertreatment diesel particulate filter differential/outlet pressure sensor to the oem harness. Install the differential pressure sensor tubes.
If the temps reach 525 or better and the inlet temp to the dpf stalls around 800 or is very very slow to reach 1000+ then something is wrong with the injector or doc. Connect the aftertreatment diesel particulate filter differential/outlet pressure sensor to the oem harness. Install the differential pressure sensor tubes.
