Intermittent starting and dying problem solved

The wiggle test. For sure, I wish I would have thought of that this summer. We were coming back from a car show and the oil pressure dropped on the highway. Yikes! I limped it home, looked it over and didn't see anything obvious, changed the oil and filter, cut open the filter, all clean. Took it out for a test drive, same thing. Damn it, we just rebuilt the engine last winter, I don't want to do it again. Kept poking around under the hood. The wire on the oil pressure sending unit was loose. Must have lost connection at highway speed for some reason. Tightened the nut and pressure was perfect again. Sheesh, yes do the wiggle test first. Lesson learned.