I bought a 2016 Crosstrek that was wrecked. All fixed but have one proble still remaing. When I turn the steering wheel all the way to the right and let go it will turn itself all the way to the left . It is an electric rack and pinion. Any ideas on what causes this. The car did need a left side strut and a lower control arm and a tie rod end due to the wreck. I figure either a damaged rack and pinion unit or some sort or sensor. Your thoughts???? Thank you