I have looked back and forth between all the diagrams and and webpages as far as installing my s-afc. I think I have it pretty much figured out but there are a few things that I am not sure about. On vfaq.com it shows the blue wire being connected as the 02 wire on pin #4 but in a supplementary wiring diagram that came from extreme motorsports (i guess) it says to connect the white wire to that same pin, but says nothing of the blue wire. I also already have an a/f gauge so do I need to connect it up to show in the s-afc display? i dont want to draw current if i dont have too.