94 Plymouth Voyager dies without constant gas pedal feed


94 Plymouth Voyager 3.3L v6.A couple of months ago my car would start and not start intermittantly.When it did start, It ran great. Now, if I get it to start, I have to maintain constant pressure on the gas pedal or it will die. I have checked battery, alternator… there is spark when plug touched to manifold. Please someone help! I need some ideas!