Nissan Versa 2008 keeps getting codes 1740, p1777,p0745 why?

Question

I have changed the CVT Transmission and Transmission computer and I keep getting this three codes, the car runs fine for 20 mins when i stop and turn off the car for 10 mins and come back the car wont accelerate it wont go past 20mph which was exactly the way it was acting before I changes both the Transmission and Trans Computer. Has anyone have the same issue? if so what fix it ? Thanks