Last weekend during the EPS at the MACH track, there was somebody with a HW extreme ESC also having a similar issue, after I gave him a new sensor cable, it solved the problem as far as I know....
It can be a bad contact in any of those small pins, who knows....
Sensor cable was my first thought so i tried 3 different cables and i had the same issue.It's very strange because i have the same problem on both cars with 2 different speedos (HW 120 v2.1 both).Another thought is that my batteries aren't so good so with all these turbo and booster settings, voltage is dropping too fast hence the lipo protection kicks after a while.Next Sunday i'll try with the same settings but with new and bigger capacity batteries and i hope i'll get more luck.