I have a superchip programer. Installed the 91 tune and ever since I have got warning lights ESP/BAS traction control off light. And, the U0401 Implausible data received from ecm/pcm. It also shifts very hard and seems to stay in gear way to long, or shifts in and out of overdrive constantly on the highway. I see others have had this problem without the superchip and maybe its just a coincidence. The dealer told me they can't seem to find anything wrong with it at this time and need to bring it back later. They also said their may be a recall coming out on this problem at some point but no idea yet how to fix it. Anyone have any experience with this code or have anything I can tell the dealer.?? Thanks !