1.6 miata, looks like cylinder 1 not sparking-

I have a 1990 mazda miata, was reversing one day and came to a stop, the vehicle turned off on me. Turn it back on and drive it couple hundred feet till it sputtered and gave out (fuel im guessing). Open the hood only to see TPS and IACV disconnected dont know how but.. connected both back together car still the same. Yet sounds like it not firing all cylinder. Pulled cylinder 1 plug wire and i see very little spark. cylinder 2,3,4 spark is fine. I replaced Coils, Spark plug wires, spark plugs, AFM... have no idea took it to 3 mechanics niether could fix it. One mechanic just got it to stay on? Any kind of help or info would help. or will pay for a good mechanic to fix it.