Well I made a ground strap for the T.B. and the difference is quite shocking. After I had the back o2 sensor replaced on the driver's side truck was running better but the idle still was pretty crappy and truck would hesitate at low rpm's(like rolling out of a parking lot) Grounded the TB and idle is rock solid 600rpm and the throttle response I stilll sense a lag but its way better then before. Took me half an hour to put some ends on the wire hook er up and she was done. Still have I-dot light so I will get them to do front sensor this week and that should put this to bed. This was such an easy thing to do it kills me. I watched my T.B. opening at idle before and the plate was making small movements which I think causes that crappy idle. Once I gorunded it there was no more slight movement of the plate unless someone gives it gas. If you have drive by wire this is a MUST mod and no deffinately not a placebo thing at all. I'm convinced!!