wacked out steering

[crawlin duckies]

so i just put in the 6 cell upgrade on my evo chassis and i turned it on and it works but the steering is all wacked out it just turns left and right on its own at rapid speeds.... what seems to be the problem if anyone knows!! thanks

[XMDrifter]

it's just servo jitter.
unsolder a servo power wire and put a 3.3k resistor in between the board and the power wire. the resistance helps with taking away the little spikes of voltage that the board send to the servo.