myc ar wont run from a distance.
 

my friends xanavi doesnt seem to turn or move, from a distance. Im thinking of possibilites, weve tested the controller which is a 57mhz with my rx7a nd it has the same problem. i used my heavily modded rx7 control and it ran the xanavi. The last thing, i can think of out of the multiple things ive tried is to change the cars antenna. If anyone can reply please do so cuz ALL help is greatly appreciatad.

Is this a recent problem or did it start out this way?

brand new out of the box. I kept of thinking of things that helped my previous cars, and i remembered the capacitator, so i unsoldered it, and my friends car ran stutter-free and from about 10-15 feet away. So thanks anyways for the help.