I forgot to mention that there is 1" foam behind the Tyvek paper too that is staying.

Thanks

You need to remove the Tyvek.

It should not be there in the first place.

Tyvek should not be used over rigid foam insulation. Placing Tyvek over rigid foam renders the Tyvek useless.

Remove the Tyvek and install your fibered cement board directly over the foam.

Nothing else is required.

Thanks for the reply. Sould I be concerned about the small holes left by the nails from the wood siding that was removed? It will all be covered anyway by the new siding anyway I guess.

No, you have no need to worry about any nail holes.

Thanks, I'll remove the paper and start hanging siding!