oil pressure

After installing the latest firmware on my dual SkyView Classics Touch displays, I began getting warnings that engine RPM was too high. Looking at the display it was jumping quickly up and down from 4800 to 5200+. I did have a battery that was old (and not holding a charge), so I replaced it...

I'm updating my aircraft with a full Dynon suite. I've been running EI engine instruments for years and they have been bullet proof. But, I don't have room for both the EI instruments and the Dynon screen, (two place tandum aircraft). So, I'm trying to reuse the EI sensors. I've found out that...