Gene, this sounds like an electrical problem and the absolute first thing I would check is your common L-Jet system grounds - brown wires, one at the lower throttle bracket mounting bolt at the rear of the manifold - not as likely the cause - and a group of ground wires at the FI ECM behind the pass-side kick panel - the most likely place of corrosion build-up, oddly enough, and hardly ever checked!
Proper power is important, proper ground contact even more so!