Start a new thread so we can help but if you decide not to, we've been discussing this topic on another thread Mep002/3 fuel pump question. But sounds like the plunger guide is broken since you have the plunger moving and no fuel. The guide keeps the plunger in place and if the guide is broken, it will let the plunger rotate, not letting fuel pass. You have to take the pump off and disassemble, to get to the guide.