Bank 1 02 sensor reading higher (mVs)

[Haans249]

Fuel trims are a response to the O2 sensors, trims do not just do their own thing to see what happens to the O2s. Positive trims means it thinks it is lean.

The two sensors do look different. Normally when one sensor is switching slower than the other it's a sensor issue. Old, fouled, something. O2 sensors get worn out long before they go completely dead and set codes.

Not trying to hijack this thread, but thought I would post up a couple log of my Bank 2 reading rich at idle while also having my STFT's between bank 1 and bank 2 locked together, instead of pulling 4-5% to even it out compared to bank 1. My widebank is installed on bank 2 as well and the reading confirm the slightly rich condition. I have a hard time comprehending how this could be the case, but it is quite apparent in both logs and not sure why its that way...

[Haans249]

Any further thoughts on this subject?