does anyone have any idea what would cause your tech not to work right/properly it will work some times and most of the time not

 

What is a tech?

 

tachometer
so its a long day and im tired

 

https://www.rx7club.com/3rd-gen-archives-73/fix-tach-17247/

 

It happened to me also, its usually caused by the ancient soldering disconnecting over time. Take your gauge cluster off and inspect the circuits, most likely you will find few that are disconnected.
hope it helps.