Speed Passion GT 2.0 LPF after calibration runs at full speed for half a lap and then acts as if the battery is dead.....I let the throttle go and then hit it again and has only a small burst of speed.Then acts dead again....any one know what that could be? The one in my other car is not doing that at all. I re- bind and re calibrate but the same thing is happening. Any one ever experience this? thanks.