2g Tachometer stopped working.

So, my tach stopped working but I still had my rpm's showing in Ecmlink. Needed a bunch of help on this one but these were just some of the things "I" checked. Hope this helps for anyone having the same issue. It was a pain for me because I suck at electrical stuff. Thanks to all that assisted!!!
P.S. I failed to mention that I tried 3 different clusters, 3 different spare ptu's I had, and 2 different noise condenser's. This video basically just covers the wiring aspect of it. Not the parts themselves.

[@macaco2472]

What if my RPM gauge, works but,sometimes?? And my speed is off by 5mph

[@V8sareslow1]

Tried a different cluster by chance?