These are all good ideas, priming the system with a drill and attachment makes sense , the remote
oil filter and Cooler can suck up 2+ qts without issue.
If you have the inlet and outlet on the
oil filter adapter to the block fliped in vs out, this can cause the no pressure condition ,as well.
As for electrical, thank you rodney for your kind words,--!
Electrical; the pressure sender operates on a set amount of voltage and it's resistance is the variable to that Voltage as read buy the gauge on the dash.
For instance , if you grab your handy ohm-meter, multi- meter and set it to ohms of resistance , and attach it to the lead and ground of the sender you will see one set of values at 0 psi
oil pressure and the number of ohms resistance will change up or down depending on the design of the sender as pressure increases.
I did not review the ohm readings on the krikham gauges as of yet, but i am sure with a call to Arron at their mfr, I could get the specs if you are indeed in need.
Steve