Car dies when running and wont start again, i spay starting fluid in the throtle and it starts but if i let go of the gas it dies again and i can't start it normaly, fuel pump about 4 months old, new fuel filter, idle air control valve, coil, rotor and distributor cap, could it be the throtle positioning sensor?

Immobilizer key or alarm possibility

check the fuel presure

No they had obd 2 since 85

Check or replace all your fuel filters. Check for water in your fuel. Drain your tank and replace with 93 octane fuel. Also check your spark plugs.

motors need 3 things to run properly. gas spark and compression. the starting point. also spark timing.
the motor you are dealing with is easy. i just rebult a 1978. anyways sounds like a timing problem . first i would check the distributer. if all is ok spay a squirt of starting fluid in the air filter, or even wd40.,,,,,,,see if it is gasoline problem. isolate where the problem is.

I'm following another issue like this on a 1996 Jimmy.
This engine requires 60psi or more fuel pressure to run.
You need to have someone check the fuel pressure at the rail- throttle body with a gauge.

maybe it didnt run out of gas but just shut down, if it did run out it may have sucked up dirt from the botoom of the tank causing the fuelpump to lock up, what you can try to see if the pump starts again is to spray starting fluid into throtle body and cranking the engine, the engine should start and will die out after fluid is burnt but may stay running if power stays to pump and it frees up, you may have to try this a few times, if you spray and it doesnt start then you may have a diffrent problem. make sure to have someone hold pedal to floor and spray for 3sec, then release gas pedal connect hose to throtlebody and try to start. good day.

check the idle control sensor

have the computer analized for free at Auto Zone.. they will advise you what is bad

Replace the fuel pump its bad.