uncontrolable car.

[himynamebebrian]

my car keeps turning right for a split second then left when i turn the wheel on the remote to the left, the same thing happens when i turn right. this is bugging me badly. help please.
also, when i am holding the trigger down fully, the car goes like putt putt putt. like a broken car. like there are spaces in the sending radiowave. kindove like..... ___-___-___-___-___-___-___-___- lke the _ is good signal and the - is broken signal.
its super annoying, any help would be very appreciated.