I just had the same problem on my 6EX Faast 2.4 setup. (My fault) I didn't have the idle & also the fully open set close enough so like a dummy, I used the "E.P.A." (end point adjustment) in the TX to get the proper WOT & idle. It worked fine....BUT..............it killed my throttle trim & also the throttle cut.

I then went back & reset the E.P.A. to nuetral & did it the proper way, usingdifferent arms & holes in the arms Etc Etc & minor E.P.A. adjustments. In my case it was called laziness.......................

Tcat