Got my problem partially solved. I have plugged in the second connector to my Aux 2 channel and can get throttle to respond with this configuration. We tried increasng the throw of the throttle channel to 120% to see if that would allow me to use single channel operation but still no luck. Certainly at a disadvantage trying to do all of this with no EDT.

How many different versions of EDT are there ? Will an older version work for this gen 2 ECU or do I have to have a newer version ??