I just got my new Rustler last week, today was the first nice day to break in motor. Partway into tank 1, car suddenly took off at full throttle. Chocked it up to glitch, tried again. After changing glow plug to get started again, a few more minutes and same thing happened! Both times I was about 15 feet from car at time of take off. Have carefully tried since and upon startup engine goes to full throttle, have dialed back controller nuetral for throttle, and also adjusted idle speed on carb, both only temporarly seem to fix, then back to same problem. Traxxas hotline seemed stumped, suggested I get new crystals. Was looking for some guidance on possible fix or at least where to begin. Thanks