I've been letting my son play drive lately.  I start up a game, show him the reset key, and off he goes.  Last week he decided to try and hook the wheel up himself.  My wife says he dropped it.  I don't know how it landed, but now I've got about an inch and a half of free play in the center position.  The first few turns I heard a clicking noise in the wheel, but that ceased.

I cannot control the car like this.  Has anyone had a DFP apart?  I'd like to see if I can fix it. 

I had the steering wheel off and replaced the gear up switch, but I'm not sure if it worked as I'm still running my backup wheel.  Never been into the steering mechanism or the pedals ( crosses fingers )

Good luck m8!

BTW, if you need parts, try www.newark.com and www.alliedelectronics.com  .  Those are my go to's for electronic stuff.

Good find Steiny...

If the wheel is anything like the G25 there will be a cog like that which rests in a strip of plastic. This strip has teeth on its top side and slides back and forth in some grease. This bar limits the G25 rotation, it only allows it to spin to the right/left so far. This plastic piece is not very strong and could have easily been dislodged if I dropped my wheel, that may be what happened to yours.

Pete's right though, the best way to find out is to take it apart and have a boo If you are a bit worried about it ( I know I was when I took mine apart for the first time) take pictures of each stage so you can reference back to them of where things were.