I just finished installing an Auto Meter wideband, and the optional brown wire is suppose to go to a WOT wire. I wired it up to the center wire on my TPS thinking it was the correct one, but my car idled high so I disco'd it. I'm just wondering which wire I'm suppose to connect it to. It is a 99 GT. Also, is it suppose to be more accurate with that wire or should I just leave it disco'd?