Acquired a 97 Miata that had sat for 6 years. I drained the tank and both supply and return lines. Installed new fuel pump, fuel filter, removed rail and cleaned injectors, checked injectors with noid and working properly, and new fuel pressure regulator as it was not allowing gas in the fuel rail. Now, it will run if i put gas in the intake manifold but only runs on the gas that I put in manifold. Keeps trying to fire on the little gas that is getting into the injectors. But will not continue running. It appears to be gas related but am running out of things to check. Am i missing something that is obvious to others? Any help would be appreciated. THANKS