Hi Gump,

Perhaps you have it fixed by now. I would be interested in the solution if you have. At any rate... I had a Yale from the same era with a Mazda 2.2 do exactly the same thing to me last year. I also tried a variety of things. Basically everything you did. I had also replaced the fuel lock off as they had the old design with the pigtail which can cause the engine to die when you manipulate the wiring harness. (The new design comes with a wiring harness that plugs right into the body of the lockoff. P/N: 4043883) We brought it into the shop and put our heads together and using the fuel system software determined that the MAP sensor was intermittent. Part number: 1548352 if you feel like checking to see for yourself.

Best of luck!