So.... Any advice would be greatly appreciated.

I hop in the plane and all of the sudden it doesn't have any tach, MP or oil pressure guages on the EFIS.
they are just "gone"!!! Nobody has touched the airplane since the previous flight.

Checked connections... Everything seems good!

I would think there would be fields present but with red "X" across them if the engine monitoring hardware had malfunctioned ..... But in this instance the fields have completely Disappeared!

i can't seem to restore the fields...

Any thoughts?

Thanks All!