Setting PID for gen 2 save

[ender12]

Real quick, how would I modify the PID of a pokemon in a gen 2 save (since EC didn't exist yet)? Trying to make a shiny dunsparce from Crystal that will evolve into a dudunsparce once I move it to SV.  But I don't see the option to do so.  If it's not possible, how would I go about making such a dunsparce?  I've searched around quite a bit and can't seem to find a solution.

Thanks

[Atrius97]

Shininess is not determined by PID in Gen 1 or Gen 2, it's determined by the IVs/DVs of the Pokémon. 
https://bulbapedia.bulbagarden.net/wiki/Shiny_Pokémon#Generation_II

The PID and EC would be determined randomly when transferred from Crystal to Pokémon Bank. If you intended to alter the EC, you would have to edit or generate it in a different game.