At my last off-road race I had 2 identical motors stop working back to back. I'm running a Hobbywing G2 Pro ESC and a Trinity Revtech 8.5 motor. In my first heat I landed very hard on a large triple jump and the motor just stopped. The speed control was still getting a signal from the radio and the servo worked fine. I had an identical brand new backup motor so I put it in and ran my 2nd heat. The car worked for about 4 laps then it stopped working as well. Same symptoms: ESC was getting a signal, servo worked fine.

After the race I inspected the car more closely and found that the sensor wire was loose in the ESC. It basically fell out of the ESC when I touched it. I also noticed that 1 of the sensor wires had been ripped completely out of the sensor plug on the motor side.

So would a loose sensor wire cause the motors to simply stop? Or do I have larger issues with my ESC?