warrior 9920 not working

from warrior manual:..
In case of no ‘beep’ either the gas travel is not long enough ( <0.128ms) or gas trigger (or stick) has
been moved to the wrong direction. Disconnect battery pack and receiver power. Lengthen gas travel
or invert gas, reconnect and start at 4.
..
assumed receiver gives steering servo okay info.. I would test with controller steering channel that the 0.128ms reguirement comes because steerin can often be fixed as "wider steer"