My gas is on 100% , but if i press break pedal, it does down. I cant find any settings for combined pedals in the game. I have logitech g27, and no settings activ in logitech profiles. From the begining, the game workt fine. But something have happend. Have not tried to reinstall.
Go to controller settings and assign the pedals to their respective functions. Click on the function and press the pedal. If this doesn't help, check your drivers for the wheel.