I have the sensor wired up to the EGR... it seemed like it was working for a few pulls and then it just started moving incoherently. I tried hooking it up to the IAT that's still in my intake tube and the same **** happens... just moves without any sort of relevance to what's actually going on.

Voltage to the EGR is 4.84 at all times when I wired it up independently instead of tying in power from the regular IAT.