TSB 18-035-08 is now on TechConnect and has the updated PN O2 sensors as well as the procedure to wrap the sensors. The wrap will keep the sensors hotter to help burn off soot.
However if there are other problems, or the system has excessive soot build up the sensors will not do much better than the old ones. Your dealer needs to understand this or you will just be frustrated.
However if there are other problems, or the system has excessive soot build up the sensors will not do much better than the old ones. Your dealer needs to understand this or you will just be frustrated.