Why won't 93 Buick Century will not start it turns over but spits and sputters and won't start?

The fuel pump relay is designed to initially give enough gas to start the engine as well as provided gas for runnining the engine. Sometimes the relay does not respond when the motor turns. In rare cases the Map Sensor may be faulty. The Map sensor is designed to detect the engine es turning and gas is needed to keep the engine running. If you remove the conncector for the map sensor the engine will start; given: you have power to the ignition coil which in turn sends power to your spark plugs and the timing is set. The map sensor is located above the Power Steering pump attached to the firewall and has a hose and a conncector attached to it. kind of flat and mounted upright. F. Garay