Car Ramrod
Toruck, if you have an over torque it will not auto feather on you, that's not how the system works. Pull the power lever back, if that has no effect, cut the fuel and manually feather. I would expect though, that if the engine failed after an uncorrected over torque event that the prop will automatically feather.
Retarding the power lever will deactivate the auto feather, both power levers need to be
in the take off power range (I cant recall the exact number but around 88%Ng) for auto
feather to arm, then if Tq falls (once again I forget the exact number) to around
200ft/lbs the system will feather.