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Followup to Rear Nox Sensor Replacement
CEL error codes:
4BF0, 4744V, 4B3A
6 months and 10,0000 kms since I replaced my downstream(rear)Nox sensor.(only rear was generating error codes).
I DID NOT RESET ADAPTIONS given that my INPA software was not capable of reset, I did not have access to ISTA software and investgation and logic suggested that reset may not be necessary for "rear only" replacement with the purpose it serves(monitoring nox reduction).
I can report that no further Nox realated codes, no drivability issues and can still can eke out 1000 kms from a tank of fuel on a long trips.
Please note: I would not forego the "adaptions reset" process for a "front" Nox sensor replacement as to my understanding, it provides input to fuel and engine management.
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