I was wondering if I still expect to see a vf signal in the aux1 when u setup for part throttle tracking? Considering the stock o2 is no longer in the mix and the maftpro is adjusting the airfuel mix via info it get from my wideband. On my sensor page in the maftpro I just see 0.01v now in my aux1 readings. Thanks for the reply. I just wanna make sure I'm where I need to be.