O2 sensor fault

[GTMorgan]

Had the EML on a few times over the last few weeks so bought a GS911, it pointed to a bank 2 oxygen sensor fault, bike runs completely normal.
Couldn’t see any wiring issues so bought another sensor, fitted this afternoon but, same fault.
Usually happens on startup or shortly after, anyone else had dealings with this problem?

 

[Santa-2512]

Had the EML on a few times over the last few weeks so bought a GS911, it pointed to a bank 2 oxygen sensor fault, bike runs completely normal.
Couldn’t see any wiring issues so bought another sensor, fitted this afternoon but, same fault.
Usually happens on startup or shortly after, anyone else had dealings with this problem?

What model,

What year

What month of manufacture (if known)

Any thing changed on the bike recently ?

you done anything differently? riding / fueling

Service history

Battery age

 

[GTMorgan]

Sorry, forgot the important bit!
2020 1250.
Nothing changed.
Battery new yuasa 6 months ago and displays good voltage.

 

[GTMorgan]

Quick update in case anyone else stumbles across this thread - I cleared the fault then did a mixture reset with the 911, this erases all the fuel/air mixture info the bike has learned and makes it start again.
Did a 250 mile ride yesterday and no further faults as yet, hopefully sorted but, I'll update again if it reoccurs.