Car stalled an now will only start if gas pedal is to floor runs ruff for a few secs than it stalls

Car stalled out towed home would not start unless I heald gas pedal to floor an once started would only continue runing if gas pedel is still held to floor but it stalls after about 30 secs I got good spark good fuel pressure 42psi good compression 150 each cylinder I have change crankshaft sensor tps an no change ran obo2 got a p0121b checked plugs they r black an wet cleaned them tryed to run no luck I removed fuel pump fuse an sprayed starter fluid an it started up ran great put fuse back in an back to barely starting an stalling smelling gas so guess car is geting flooded is it the injectors bad or fuel pressure reg bad how can I know forsure already put 2000 in this car in the last few months an sure cant aford much more but sure need this car back on road