"This takes into account that you removed the valve out of the threaded injector pipe, per MB instructions"

I did not remove anything but the line, and then screwed my line on the IP pump. Where is this valve I have to remove, and how do I remove it? I think we have just figured out why I had no fuel flow
I am a person who does things the right way and I want to get it right by using the tube!
Thanks
Bryan