You need to see what you are getting on the + terminal on the coil.It should be battery volts. with the key on and battery volts while cranking. The oil pressure switch opens when there is no oil pressure.
Jumping across the switch tells you if the switch is good or if you have no or really low oil pressure. That's what feeds the + side of the coil battery volts.
This is ONLY to be used to report flooding, spam, advertising and problematic (harassing, abusive or crude) posts.