Did u check to see if the steering can work from ch2 with the throttle trigger?
Did u check to see where the throttle trigger is?
what setting is it on, 50/50 or 70/30?
Did u check the trip dial on the controller?
Sorry its important, mainly the 1st test, if it fails, because u have tryed other recivers it would mean there is a problem with the throttle signal coming from the controller
if all the 3 checks all work/perfect ie steering works from CH2, trigger is set to 50/50, and trim is set to the middle (0)
here check this. its one ofmy cars, the button is completly gone, it still works with a small screwdriver or tweeses