Will not stay running and stalls while driving

When I start my car up in the morning it starts just fine but then just a few blocks down the road it begins to lose it's idle and stalls and sometimes I can start it again right away but sometimes it takes a few minutes and I get honked at really quickly cause I am usually at a intersection, and my temperature light has started to come on as well. What do you think the problem is?

1990 cavalier starts but dies immediatly checked all fuel sources and it is getting fuel.

Problem was sudden. Ran fine then started choking when tried to give it gas, finelly died and won't run. If I push the gas pedal it hisses thru fuel injectors. Fuel pump and filter are fine.

The car runs fine and is very strong when it is cold but after it starts to warm up it shuts off and will not start again till it sits for at least 5 or 6 hours or until it is completely cold I have replaced the following fuel pump fuel filter fuel pressure regulator ecm spark plugs wires coils and module they are bolted to tps map sensor crank sensor & wiring harness everything has helped it run a little better but nothing has fixed the problem have also checked for a clog in the exhaust and nothing is fixing it I have run out of ideas on what it could be can someone please help I love this car and hate to get rid of it

I have a 1989 Chevrolet cavalier, 2.0liter, automatic tranny. Car starts then dies. I drove the car, shut it of went in to the store came out, it started then died. Came back with trailer it started up and I drove it on to the trailer. Got home and it started and died. I'm losing fuel after start up, coming out of the injector. I have 14psi of fuel pressure while running. Replaced the following, ecm, ignition module, coils, oil pressure sender, plugs, wires, crank sensor, map, iac, fuel filter, and fuel pump relay. I pulled the regulator off and inspected, looks fine. My valve train is moving while the engine is running.

I bought a haynes manual. What is a good place to start. I have already checked and cleaned every ground that I can find. There is no CEL on. No codes. What is the possibility of the car being out of time? I also unplugged the TCC, at the transmission, still no change.

Yes it will do it over and over, as if you turned the key off.

Yes it is a single injector tb.

Fixed my car today. After running down a wiring schematic and some info from a ex-gm technician at work. I found out that the objectors was bad. Apparently the objectors has a voltage source coming off the alternator. He instructed me to unplug the alternator and try to start the car. After I did that the car run. Went and bought a new injector and installed it. Car run s perfect as before. Thanks.

Car quit running going down hiway car is getting spark, is getting fuel to injector, getting fire to injector, is getting no fuel thru the injector. Can pour gas in throttle bottom will run.