Ok well Ive been running something called a el prototype ecu which ran great and the hold still worked on the auto trans. I switched it out with a Knight Sports 4 beat fd made for a auto trans of course and now the hold light blinks like one every second or so, and the hold does not work at all. Whats the deal?

Someone told me to disconnect the other little comps behind the ecu which controls the trans or so im told. when I did disconnect it didnt work either. Who knows whats going on here??? I dont.