In my readings it looks like the power commander v is simular to the jd system, as in the both have a built in map that modifies the fuel flow. However, it seems that the autotune add on modual is sampling the o2 with it sensor and refines the mixture again thru refining the map. So it seems to that the pc w autotune has an advantage if your riding a varity of elevations and such since you won't have to make hand on adjustments. In simple terms does this sound about right? Does any one know if the jd system does any monitoring of any kind? Thanks
