Ford Repair: No injector pulse 1987 ranger 2.9, inertia switch, automotive electrician

Question
Got fuel pressure,diaphragm/pressure regulator works. truck runs if spray starter fluid in air filter.  The injectors are not firing.  the inertia switch leads were burnt as well.  Had to hard wire fuel pumps to get pressure. All happened at same time.

Answer
Stay away from the ether/starter fluid.It can severely damage the internal components of your engine,but you probably already knew that.You have an electrical problem.There are several possibilities, so you will need to get a thorough electrical diagram and troubleshoot from there.Please be careful.If it was me, I would take the truck to an automotive electrician.