While trying to figure out what to do to make my car pass our emissions control here in Slovakia, I got the FAP app and a bluetooth code reader, and tried to regen the DPF. Several times the error code P1457 came up about the exhaust differential pressure sensor, with the explanation that the DPF filter is punctured or absent. Likewise, regardless what percentage soot load was indicated, the FAP pressure was always low, only changes basically with how hard the engine was running (from 0 - 27mbar).
So, I think it is quite likely that the DPF has been somehow punched through. And given that we live in a rural area, and the old tractors people drive around and smoky stoves in the winter are a much bigger source of particle pollution than our Peugeot, I wouldn't feel much guilt about this, however, I need to pass emissions. The max smokiness value allowed for our car (2010 308 SW 1.6 HDI) is 0.55m-1, while it failed with 3.6m-1. And while I think some of this may have to do with the PCV valve leaking oil, I don't think there's any way the car can actually get down that low without a DPF filter.
Well, I was told that if I pay someone 160 euros, they can make it pass-- but that will quickly add up every 2 years!
So I want to replace it, and I see online what looks like half of the CAT-DPF tube being sold. So does that mean that the original one gets cut in half? I'd want to keep the original CAT if possible, as I assume it is going to better than a replacement one. And do the replacement DPFs last a decent amount of time? I'll make sure to keep an eye on its sootiness and plan to visit the Tatra mountains to take a hike more frequently so it will get a chance to regen on the motorway.
Also, can anyone point me in the right direction of which diagnostic cable to buy for my car to run the Peugeot software?
Screenshots from different alleged sootiness levels:
So, I think it is quite likely that the DPF has been somehow punched through. And given that we live in a rural area, and the old tractors people drive around and smoky stoves in the winter are a much bigger source of particle pollution than our Peugeot, I wouldn't feel much guilt about this, however, I need to pass emissions. The max smokiness value allowed for our car (2010 308 SW 1.6 HDI) is 0.55m-1, while it failed with 3.6m-1. And while I think some of this may have to do with the PCV valve leaking oil, I don't think there's any way the car can actually get down that low without a DPF filter.
Well, I was told that if I pay someone 160 euros, they can make it pass-- but that will quickly add up every 2 years!
So I want to replace it, and I see online what looks like half of the CAT-DPF tube being sold. So does that mean that the original one gets cut in half? I'd want to keep the original CAT if possible, as I assume it is going to better than a replacement one. And do the replacement DPFs last a decent amount of time? I'll make sure to keep an eye on its sootiness and plan to visit the Tatra mountains to take a hike more frequently so it will get a chance to regen on the motorway.
Also, can anyone point me in the right direction of which diagnostic cable to buy for my car to run the Peugeot software?
Screenshots from different alleged sootiness levels:



