My 93 Lumina (3.1 OHV, auto) just died at a traffic light all of a sudden. It wouldn't restart at first, then when it finally did, it would sputter and die again as soon as I depressed the gas pedal. By gently feathering the gas, I was able to nurse it into a nearby parking lot. And that is where it sits. The car just passed smog the day before. Less than a 10,000 miles ago I replaced plugs, wires, fuel filter. After leaving the ignition on for a couple of minutes, the engine will start and idle smoothly. But it sputters and dies as soon as any gas is given. If I let it idle, it will run for about a minute before dying. My guesses are Fuel Pump Relay or Fuel Pump. I swapped relays with the AC relay and got the same results. Is there an easy way to check the
Fuel Pump? Any other ideas? Help!

Check the fuel filter. The symptom says it can't supply enough volume on demand, so that would be the logical first step.