Gurus,please decode LiveData
 

Hi Guys,

Can any of you tell me what is going on on that picture.
I have an O2 fault code coming all the time,I erase it and it comes 50 kilometers later.

Nobody?

Nothing of help in the pic.

What is the error?

Have you replaced the o2 sensors?

All four are changed about year ago.
I had it before I got all the modules flashed,after flash it didn't come back for about a year.Now it was on for about 6 months.Always a Bank 2 post catalytic.
It's was the first time I checked out the live data and now I see that something isn't right.
Bad catalytic converter?

I would suggest some time at an Indy, to get a straight answer.
Who installed the O2 sensors? I've heard they are a beatch to change, and some places tell you, and charge you, like they were replaced, when the old ones are still there.
Could also be catalytic converter, but, instead of swapping new for old, get a straight answer from an Indy. Shouldn't cost you more than diagnostic time ($100 or less, is my guess).

My indy returned all 4 old ones after swap.
Which makes me wander,maybe I was lucky enough to get a faulty sensor from new?

What does it say is the fault with the b2s2 o2?

And what do you see wrong in that screen shot?
Having the values plus or minus less than 5 is typical and normal. I believe 25 is the limit where the dme sets a code for too rich or lean.

What would make it go negative or differ from the one that isn't throwing any code?
Also I notice that driver side exhaust is denser than the passenger side one,especially during a cold start up.