O2 Sensor Issues 2012 X5M Sport (50i)

[ihatespamiam]

2012 X5M Sport (50i) O2 Sensor issues

I have an issue going on with the O2 sensors in my wifes car. Started out with fault codes indicating a faulty O2 Sensor in bank 2. Ordered a new one and replaced it. I assumed this would fix the issue. Now I'm getting three recurring codes and still the foul smelling exhaust. The new O2 sensor (pre cat) Bank 2 is coated with carbon indicating rich conditions.

1.2C31 Oxygen Sensor before catalytic converter Trim Control.
2.2C2B Oxygen Sensor Before Catalytic Converter System Check.
3.2C2C Oxygen Sensor Before Catalytic Converter 2 System Check.

Relatively new to the X5 so my experience with them is limited. Is there a procedure for resetting values that I'm missing? Thanks I just realized I posted in the wrong section. My bad. FNG

[jclausen]

You need to run some test plans thru ista

[ihatespamiam]

Can you explain please?

[ihatespamiam]

Update:
After taking this to my local German shop, found out that one of my bank two injectors had failed{N63 are famous for this) and had melted down the catalytic converter on that bank. I'm a mechanic, but this car intimidates me so they pulled the cat for replacement, and are replacing the injectors. I'm trying to find someplace that can test and clean the piezo injectors so I've got spares.If anyone knows of a testing facility in the US, please let me know, otherwise, the only place I've found is in England.