Hi im new to the Rc sport and i recently bought a TT01-D and having some problems. Once i push full throttle forward and reverse the ESC beeps and flashes once and the car jolts every 2 seconds. But if i push mid throttle (forward or reverse) it works fine.

Can you describe the electronics being used?
Motor, ESC and radio system.
It may just be a matter of calibrating the TX to the ESC.