2009 prostar isx crankshaft sensor issue

[Zmcd]

2009 prostar isx 450hp

Thanks for letting me join first of all.. I was having issues with my truck losing power randomly. Had a code for cam sensor so swapped it out. Truck ran smooth for half the day. Then had bad random loss of power with the rpm’s fluctuating from normal to dropping really low. Had a crankshaft sensor code. I tried to remove the sensor but it broke trying to take it off. I took it to a mechanic and they drilled the sensor out and replaced it. I’m just finding out they drilled thru some of the teeth on the tone ring. Now I’m having the same issue. I swapped out ecm and engine harness not knowing that they had drilled thru the tone ring. They state it isn’t an issue, but I’m thinking this is the problem on why the truck continues to read that error and act the same. Does that sound right? I apologize if I sound foolish, just need to get this truck running it’s been down a month.