So I installed my pcv and autotune and flashe sbu ecu. I have completely removed and capped off the stock o2 connector and removed the 02 sensor. So it suprised me today to see my mpg counter working. I was like wtf?? The only o2 sensor on this bike is through the autotune so the pcv must be sending the ecu mpg data... from what what I can tell it's accurate too lol. Fing werid man.