go to controler setup and then go to the axis/joystick section on the bottom of your screen there should be a bar that measures the steering. Play aroung with ur wheel ad that bar and try to get it perfectly in the middle. Ull see wat im talkin bout when u go there. I was able to make it perfect using that.

i also had dat prob., except it was very very off. Go to controler options then go to axis tab and config. It. Good lck