I've been a long time 1.6 guy, but I'm building a 99 for my wife and I'm learning all the nuances of this car. The donor motors crank position sensor mounting spot was completely flat:

But on the new motor that I bought, there's a "nub" sticking out that seems like it would help to locate the crank angle sensor at a particular angle.

The problem is, to install the crank position sensor, I'll have to grind off that nub. Is there an updated sensor that I should be using that has a slot for the nub? Or is there an incorrect part installed in my brand new motor?
Any help would be appreciated!
Cheers,
Dean