1993 Geo Prizm Geo Prizm turns dies when trying to accelera

My 93 prizm (corolla) stalled and died one morning going to work. I changed ecu, ign coil, distributor cap, map sensor, air intake sensor. Before all this it wouldnt start now it will start only if I pull two plugs and dip them in gas. It will idle allday but when I go to accel it tries to die out unless I feather the gas peddle then it will catch up still sputtering now and then. All my research has lead me to fuel pressure regulator or fuel pump. I dont have a pressure guage but I did remove the fuel line going into the fuel rail and it seems to be getting really good incoming pressure, so I guess my question is do the (fpr) has pressure build up on the return. Thank you