[tvbh40a]

I bought a 06 rt 1000 with 250 miles on it and the dealer replaced the engine control computer the day I picked it up. Took it for a ride for the first time this weekend and the bottom end was really rich. Does a new ecu take 10 hours to break in like a new sled and then will it lean it self out? Or do I need to put a fuel controller on it or take it to the dealer and get it checked over? Any help would be appreciated. Mike in Idaho