Hey guys i need help with a problem. At random times while driving my car it will start going full throttle by itself. Even after it hits something the wheels keep spinning full speed until i chase it down and turn it off. I have Recalibrated the throttle trim and put new crystals in and it still does it. I did have to get a new remote well used remote after mine got ran over. And it is the 27mhz system. What can be causing it or is it just time to upgrade to the 2.4 system?