the other day i noticed a lack of power from my 2010 mini cooper s (72k). i used my vgate and looked for a code and came up with nothing for three days. i checked to see if there was an issue with the boost and notices it was peaking at 3.8-4.2 psi. i checked the codes again while driving today and it finally pulled a p013e code. i cant hear any boot leaks and im not seeing any loose connections anywhere under the hood when it comes to boost hoses. any ideas where to look next and what this code could be caused by? i replaced the post cat o2 sensor three weeks ago if that helps

 

P013E - Oxygen Sensor Delayed Response Rich to Lean Bank 1 Sensor 2

Faulty Heated Oxygen Bank 1 Sensor 2
- Heated Oxygen Bank 1 Sensor 2 harness is open or shorted
- Heated Oxygen Bank 1 Sensor 2 circuit poor electrical connection
- Inappropriate fuel pressure
- Faulty fuel injectors
- Intake air leaks may be faulty
- Exhaust gas leaks

 

I'm thinking it's the o2 sensor. If my memory serves me correctly I think it references the post cat sensor, which I just replaced. I'm going to pull off the sensor again tomorrow when I drop my subframe to install now lower control arm bushings. I'll post my findings. May just need to add some dielectric grease. Pretty salty up here this time of year.

 

The Bentley manual strongly warns against using any grease in the threads of the O2 sensor. Why would you think it's the O2 sensor if you just replaced it?