Yes, to farther illustrate Scott?s post, if you look at this picture,
right under the bottom left of the CV you will see the bolt and the piece of the LCA it hits. There is the same set up on the opposite side. These are the turning stops and they determine your turning radius. It could be that you wore out the plastic end cap that covers the bolt, it fell out as Scott said or you somehow loosened the bolt. I?d check those things first. You can buy a new end cap (I think it is part #40039-2S610, about $2) and/or move the stop bolt out a bit. It?s an easy adjustment. Loosen the lock nut, back the stop bolt out a bit, tighten the lock nut, grease both the bolt end cap and the part on the LCA and your done.
Let us know what happens.