I try to start my car it starts then sputters and dies what could be a possibility.....I've looked up everything

 

sounds like a possible oil pressure sending unit problem. When you turn your key on, the ECM powers the fuel pump for 2 seconds to prime the pressure. After the motor is started, the oil pressure sender keeps power to the fuel pump to maintain pressure. if the sender is bad, the fuel pump will not run once the engine is started and the engine will subsequently die. Hook up a fuel pressure guage and see what the pressure does when you start the car. If you get pressure but it drops as soon as the car starts, I would inspect the sender. It is probably very oily from leaking internally through the sender and I would replace it.

 

Well, actually, the auxilliary oil pressure switch DOES provide power to the pump, but on an alternate and redundant path, separate from the pump relay. As soon as the ECM detects a distributor reference pulse, it will ground the control line to the fuel pump relay and operate the pump (presuming the realy is good).

So it is possible that a failed pressure switch would do that, but only if the relay were already bad. A TPI engine will run with (or without) one or the other. Without the relay, starting takes a little longer since there is no two-second pump priming cycle, but eventually it should start once oil pressure reached 7 PSIG. Without a pressure switch, the pump will prime, then restart as soon as the engine is cranked.

Snakeskinner is on the right path - I'd check the fuel pressure to see if it is in spec.