2014 Volvo VNL d13 p20ee00 p200200 p207f00
I got these 3 fault codes today , with a poor def quality warning. I regened twice before soot level went to zero. I did replace outlet NOx sensor without performing a reset or learning. Is it possible that this is the issue. Yesterday I had zero codes, after replacing the sensor now I have the 3 codes. Also, NOx is aftermarket not OEM