warrior 9920 not working

[BrianG]

The neutral setting for both steering and throttle (assuming 50/50 throttle control) is at 1.5ms. Min is 1ms, max is 2ms. That gives 0.5ms travel each way. The only ways a working throttle channel would give less than 0.5ms travel is if you were using a Traxxas TQ radio on 70/30, if the throttle trim was off, or if the signal was reversed.

I didn't read the full thread to see what Radio you are using, but if it's the TQ radio, set the throttle to 50/50, trims to neutral, and then switch the servo reversing control the other way.

Failing that; since the steering was working on your "bad" receiver, I would hook the steering output to the ESC and try it. And/or hook the throttle output of the receiver to the steering and try it.