I dont want to empty the dpf if its possible. I know this is the best way but car only do long travels and if its possible to remove additive tank for me is ok. The car is a mazda 3 1.6 edc16c34. Dtc on ecu: p2584. Dtc on facm: p1922, p1932, p1927. Attached Files.

This additive is injected into the engine with the diesel to clean out the DPF filter (automatic system). These fault codes appear when the additive level has dropped too low preventing the automatic injection of additive. The cure is to have the additive re-filled, and the DPF 'primed' using Mazda diagnostic equipment.

thescouselander Posts: 5,542 Forumite. 5 March 2018 at 4:25PM. On my car the DPF automatically regenerates every 150 to 200 miles so on that basis it would probably take a while to hit 400% in normal circumstances. In your case I'd suspect there is another fault causing increased levels of particulates to be produced.
1. Forced long regeneration of DPF (performed by Mazda personnel) 2. Checked all Diesel fuel injectors (all worked fine) 3. Used several additives cleaning DPF ( DPF ware factor reported by Mazda software is about 7% - excellent) none of the above worked.

DPF still fills up requiring a regen but at circa 200 miles, not 28. Feathers Diesel Services Unit G12, Lock View, Come discuss all things Mazda 3 from the

Although generic, the specific repair steps may vary depending on make/model. When a code P2455 is stored, the powertrain control module (PCM) has detected a high voltage input signal from the circuit of the diesel particulate filter (DPF) pressure sensor that has been given the designation A. This code is used only in vehicles equipped with
kiXC.
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