3F1LTHYZ

I was driving one day and red-lined a little bit and I got this code the car lost all power but was still on, so I turned it on and off and the car is shifting super hard and it jerks, and my rpm gauge loses all power, and sits at 0 alongside my temp gauge. I checked the code and cleared it. I have no idea because it seems like a electrical issue, oh and when turn the car on the rpm gauge works for a couple of seconds and then drops dead to 0. Please help