This work describes the application of radio frequency (RF) based sensing techniques to accurately measure DPF soot levels and the spatial distribution of the accumulated material. A 1.9L GM turbo diesel engine and a DPF with an RF-sensor were studied. Direct comparisons between the RF measurement and conventional pressure-based methods were made.
6) Clean or Replace DPF. If a clogged, damaged, or blocked DPF is the cause of your problem, you will either have to clean it or replace it. If it isn't damaged, start cleaning the system first. When it comes to cleaning the DPF, it is generally recommended to take the car in and look for special assistance while attempting to clean the DPF.The fault code for the regeneration frequency of the diesel particulate filter (DPF) appears when the vehicle is regene-rated unusually often or for too long. Normal regeneration intervals (driving distances between two regeneration peri-ods) are 250 km (City driving) and 500 km (Highway driving). My new Mazda 6 2.2 diesel auto regenerates it's DPF actively every 150-170 miles regardless of driving habits, is it programmed to do so? - For more news, reviews and Top Tens, visit Dear customer I recommend that you first try to do a forced regeneration for this you will drive on a motorway for 10 minutes at a speed of 40 km/h if after this nothing happens you may have to do a chemical cleaning of the DPF, for this you can do it in any external workshop, it is not necessary to use a Mazda dealer. P2458 Particulate filter regeneration maximum regeneration time exceeded. P2459 Particulate filter regeneration, regeneration frequency implausible. P246C Excessively high pressures on the inlet side indicate a restriction on the DPF. P2463 is a generic codethat is defined as “diesel particulate filter restriction”. xC6C.