Couple of infos that may be helpful to figure out what's wrong:
1) the yellow cable coming from the wheel seems burnt. It should be the problem, but before changing those pieces, it was already like this and the motor wheel was accelerating then.
2) when I spin the wheel and press the acceleration button, it breaks the wheel (?!?!)
3) the new kit is not original (discovered when it arrived)
4) never flashed any firmwares and stuff, all stock
Does anyone know how to fix it?