As the title says, i accidently removed the quest "The Molecular Level". I did choose the wrong faction by accident and I wanted to "resetquest x" to do it again. It worked but I cant gain the quest again. I tried to "setstage x" but it didn't work. I played a pretty long time and I dont want to do it all over again. So does anyone know how to trigger the quest again or which console command helps?

I appreciate any help and apologize for my english since it's not my mothertongue.

You have to go back to a previous save, before you got the quest.