Failed DPF pressure sensor – This sensor measures soot levels before and after the DPF filter to determine the pressure drop within the DPF filter. This sensor senses the pressure be t ween t he DPF filter and notifies the ACM (Aftertreatment) or ECU (Engine Control Unit) the pressure difference. A failed sensor can provide false readings and Detroit ® will not cover damages resulting from use of a non-authorized DPF cleaning process. DPF Maintenance Intervals for EPA 07. DPF cleaning intervals are established for each engine platform. When a specific mileage is reached, the “check engine” light illuminates, and you can replace your filter at any authorized Detroit ® service Abstract: The accumulation of ash in diesel particulate filters is an important factor limiting the filter’s service life, increasing its pressure drop and having an adverse effect on fuel economy. The main sources of ash are engine lube oil additives, as well as fuels and engine wear and corrosion. A number of studies have been conducted and If your DPF warning light comes on, here’s what you do.When your DPF warning light comes on, remember this: Orange warning lights are sub-critical events. Yo STEP 3: Clean all your aftertreatment components. This includes all the components that have been contaminated by the oil, fuel, and coolant. Clean exhaust system piping after the turbocharger to the inlet of the DOC filter. Clean all temperature sensors and pressure sensors (use electrical cleaner). Minnesota. Jan 23, 2022. #2. Not sure it is required at 50% but below is what you should do at 80%. Could be possible that nothing happens at 50% when you perform the below steps. Not sure. One section states: The Cummins® diesel engine meets all diesel emissions standards, resulting in one of the lowest emitting diesel engines ever produced I believe that as the DPF is an automotive part designed to be attached to an exhaust system on a moving vehicle there would have been some impact testing done on it. It seems the technology is on one hand advanced, the other hand a primitive can. Some DPF's have failed early, been replaced, failed again. I suggest manufacturing defects. Removed muffler. I have only removed the muffler and don't plan to ever mess with either the cat or DPF. I like my warranty to much. Muffler removal here. 2007 Dodge RAM 3500 6.7L Cummins Diesel. CumminZ. 2007.5, DRW 3500 BFT, Smarty S-67, 4x4, 4.30LS, 988s, 68rfe, Cool Hose, MBRP 5", Dual AMSOil ByPass, Suncoast. As soon as the engine idled back down the inlet was showing about 150 ppm and the outlet was showing about 10-15 ppm. I'm currently downloading dddl8.0 which will let me do the procedure to check them. We are sending the DPF filters off to get cleaned and when they get back I will hook back up to the truck and run the test. We’ve heard of a faulty temperature sensor on this model Triton that can lead the DPF to offer up a false alarm that it’s ready for a regeneration. That could explain the high number of regenerations the vehicle has demanded. Again, a scan might tell the full story. nDA5GRm.