Originally Posted by
M-Technic
Try replacing the sensor wire (several times) first. Then move onto the sensor board on the motor. Finally, if you are still having issues, it could be the sensor port on the ESC, but that is very rare.
It appears to me that the sensor modules are kind of fragile compared to other motors I've used. I just got a MMM 13.5 and 2 of the pins soldered to the PCB from the Hall effect board were not soldered adequately and came loose right off the bat. it seems the pins are just a tad too short and are difficult to get a good solder bond. I would say that if your motor is cogging, it's probably because of the sensor module or the cable. That's been my experience with the V3 motors.