Briggs Straton Model 445577 type 0755BI Code 080716YG ?

The boss side of the engine plug is working.
The passenger side plug is not working. When I pull the Kill Switch wire on bottom of coil, the passenger side starts working. Why is the Kill Switch Wire killing the passenger side and not the boss side when both wires are hooked together. I have checked the dio and it seems to be right. Would like to find a solution to making both plugs work like the engine was designed to do.

Harold Kirkland