Got a futaba for my mini-x, but still no luck.
 

I got a futaba Mega tech for my used mini-x, but I'm still having the same problem with the glitchy steering when I press the throttle the steering jerks and while its driving it drives very erratically.

Any Help would be great.

I've got that Tx and it works great. Hate to say it, but sounds like something else is hosed (tho I'm not particularly qualified to help out). Good luck, its a sweet ride when working.

The rx is bad, I tested the car with a futaba rx and it worked like a dream.

did you try increasing the voltage to 7.2v for your rx?