Does your car have an integrated servo saver? If it does, it may be loose. There should be (if your car has one) a little adjustment knob looking thing on one of the steering posts, tighten that a little and see if that helps. Also, make sure your transmitter is adjusted right. Depending on your transmitter, there should be a knob or wheel that adjust the throw, also make sure your EPA is adjusted right. Look in your manual to see how to adjust each of those.