o2 sensor

Hello, long story short, I had an autotuner installed and I'm removing it now. The problem is, when putting back my factory o2 sensor... I threw away all of the old wiring and I can't for the life of me figure out where it connects to. I have attached a few pictures, the o2 wire connects...

With 2,500 miles on my new MT09 when riding in the lower gears at a steady rpm I get engine surging (not related to drivetrain lash). This occurs mostly when the air temperature is above 75 degrees. Having experienced this with other bikes with O2 sensors I am certain that it is just running too...

I ordered the KevMod O2 controller to fix that awful twitchy throttle at low speeds. Right after ordering it I decided to just go for a full re-flash instead, so now I have the O2 controller brand new and still in the original packaging that I'm looking to re-sell. Since it was shipped from...