I have 2.0 TDI audi c7. I have engine management light on. When i scan for error codes i get dpf bank 1 above threshold. Recently, i got my dpf cleaned, i was told by mechanic that it wasn't bad but still he carried out forced regen and everything.
-no limp mode
-regenerates every 200-250 miles
-soot mass calculated/measurd below 25g.
-45mpg combined mileage (not bad)
But i have noticed that sometimes soot mass measured goes in negative value. And at idle my dpf sensor voltage is above 1V.
I dnt understand why my engine management light is on because of dpf although my car is not in limp mode i have done about 1000+ miles with warning light on.
Could someone plz help me to get rid of engine management light?