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Post injection active even no regen
Posted: Sun Sep 06, 2020 7:58 pm
Good evening! First of all thank you for your amazing app and your pacience to answer our question! My problem is (if it is one) is that the thrd injector have postinjection activity even the dpf is not in regen procces. As you can see in the screen shots i took, its that normal? Also, what do you think about my oil ash residue 49% at 156000 km? that normal to? Thank you for your time and pardon my english
Re: Post injection active even no regen
Posted: Tue Sep 08, 2020 8:57 am
Usually the Post injection 3 is used to increase the DPF temperature during regeneration process, but I can't exclute it's used also for other process, for example to perform the little NOx regeneration. The VAG engines list is enormous, it's difficult to know all the ECU behavior. I wouldn't mind about it if you don't see errors in the ECU log.
Oil ash seems ok, consider that the DPF expected life is about between 250.000 or 300.000 Km, so your DPF health is very good, it should reach the end of its life after 300.000 km that is a very good performance.