It's the title, i play some seconds with G27 on and game crashes as soon as i leave pits in Multiplayer, if i don't, game stays on.... without it runs good.... i don't know what happens, this doesn't happen in any other simulation racing game, or any game at all, my wheel does have some problems of stop working from nothing but idk if it has anything to do with that.

Only in multiplayer? Do u get a error in chat?

Yes only multiplayer, only with G27 on, i didn't see but i don't think so.

I believe when wheel works in single player it also should work in Multi player so something else is going on.