Pedals for flight simulation have essentially three potentiometers (or sensors): left toe brake (pushing down on left pedal), right toe brake (same for right), and rudder (pushing forwards or backwards on both pedals together). You apparently have automotive simulation pedals which have only two sensors (i.e. the two associated with toe brakes for flight pedals). Trying to map your pedals for use as rudder control would require you mix two sensors into a single rudder control. I don't think AH can do that.