Just as the title says, the lowers work fine, the upper doesn't work at all, during the tests it does nothing, in game it does nothing. I checked the connections, and it seems like they are all there. I'm new to pinball so I'm not really sure where to go from there.

Fuse good - I checked mine and it was good
When I ground center lug the coil fires perfect - Should I try this? How do I do it?
75v present when i test either outside lugs. - How do I test for this?

figured out that you can't use greater thans in your posts otherwise it won't show

So.. I found out that the fuse was hidden by the ribbon cable, it had a little burn in it, I replaced it and it is working again.

Now I'm back to the problem I had before, I'm going to replace the connector on my trough and try it again