Off an on a offroading trip and this little pin head code showed up. it appears from monitoring the sensors to be related to an intermittent connection issue. When graphing the sensors one would occasionally not report.

Considering my Y pipe was dropped for a rear main seal change,and I had no issues prior, I suspect a the connector is not quite seated.

As I have to disconnect and re-seat them,are there any maintenance /clean up things that should be done to them

 

A small amount of anti-seize on the threads if you remove them.
I would not clean the actual sensor tips with anything either.

 

Thanks @Sixpack577 , I was not clear it was the connectors rather than the sensors I am looking at cleaning up and maintaining,

 

Oh, sorry.
Then I would use electrical spray cleaner and dielectric grease on the plug pins.