Why oh why. Sudden oil pressure drop.

George Jets said
Let's see: EFI, onboard computers, electronic sensors, electronic gauges.

See a pattern here?

Spin in one of these shorty mechanical pressure gauges and see what you got.

Betting it's bad electronics for it to drop to nothing out of nowhere. View attachment 1715949870

When I ever have a problem, the first thing I ask myself, "what did I just do?". go through everything. If your pressure were that low, I think you would of heard a tapping sound. I think it would be possible a bad ground or the gauge itself.