Yeah, i did all as instructed.. however, on reading the forums one of the devs has confirmed that there is a known issue with the FFB on Fanatec wheels so i'm pinning my hope on that being the issue and them being able to resolve it during the dev process.
Good news, this has been posted earlier today from a moderator at the p.Cars forums.. Remco Van Dijk (what a name!)
Some good news for you guys: I just briefly tested the new WIP Fanatec Wheel driver with "special fix" for pCARS. It's wonderful, the FFB in this game is becoming truly brilliant.
No known release date at the moment, but it shouldn't take that long
Hopefully this will be available in one of the next builds.