Hi everyone.
i'm having an issue with my bmw e60 2008 n53b25u0 nox sensor because i'm getting a misfire on cylinder 1(29CD) and 3 errors(2B07,2B06,2AFB nox sensor related) during a cold start but when it's warm then it stops running rough and works just fine but on homogeneous mode instead of stratified,and the thing is that my original nox sensor was 7 587 129 03 Continental 5WK9 6610I so i bought a used one from e81 n43(7 587 130 02 Continental 5WK9 6621G) and i replaced it, deleted the old adaptation with INPA,drove already 100km on the n43 nox sensor and still getting those errors on cold start.Is the n43 nox sensor incompatible with the n53? or does it need more time for new adaptation? or is it also damaged? or maybe i should clean it?(i cleaned the old one and 3 errors were replaced by one 2B05 so maybe it will work also on the "new" one?) right now i don't even know what to do,if i should look for another NOX sensor or give this one some time,the injectors as i checked with INPA should be fine for now,tried coding them again but from what i've heard the coding won't do anything until the nox sensor is faulty.spark plugs are brand new,the ignition coils as i checked and even tried swaping them are also fine.