When adjusting a tune it references throttle % in contrast to what ever you are adjusting.

What channel is tied to what the ECM uses when tuning. There are many to choose from. Is it one of the Pedal position channels? One of the Throttle position channels?

I would assume it's one of the pedal position channels but when cruise control is on what is it using then? I am towing with cruise enabled most of the time when it's safe and trying to dial in my PE.

Any help would be greatly appreciated.