Why is my engine stalling

I suspect the fuel level sensor is wrong and you are really starting to run out of gas. The other reason would be a broken tank baffle that keeps fuel around the inlet to the electric fuel pump inside the fuel tank.

signs of a bad fuel pressure regulator. the vehicle runs rough, the engine will not start usually in the mornings. many times engine starts but stalls shortly after starting. a bad regulator can result in fouled plugs. black soot on plugs, blake smoke from tailpipe, running rough, stalling. you could have residue in fuel tank and need to change fuel filter again. have a very good day !!

how cold is it out side

first is there gas in the tank first, then check the fuel pump- take out the fuel hose that lead to the carburetor and crank the engine to see if fuel is coming, if not , check all hose leading to the tank - if ok , check the fuel pump- also check fuel filter too . let me know what is doing

Every time I run into a starter problem the first thing I check is where the wire meets the battery terminal for corrosion and of course the grounds.

It could be a fuel pump problem. If it isn't working correctly the engine is having to siphon fuel from the tank to the carburetor in the morning, which takes forever. The longer it sets, the fuel will eventually go back to the tank.

It sounds like you may have picked up some small debris from the bottom of the gas tank when you ran it empty. You may need to run a fuel/injector cleaning solution through the next tank of gas to clear the debris and consider changing your fuel filter too. Sea Foam is a great fuel additive and I recomment trying it full strength. Hope this helps!

REPLACE FUEL FILTER THEN FUEL PUMP

If your problem seems to be worse when the fuel tank is at a quarter or lower, then your problem is the fuel pump. I had this problem on my daughters car, asked every car guy I knew and a couple of dealer service techs no one could help. Since everything else worked and there was no problem if the fuel tank was above a quarter tank I decided to check the tank baffles. It turns out there are no baffles in this tank the fuel pump has a little reservoir built into the bottom with a little flapper button that is supposed to let fuel in, but not out. Anyway a new pump fixed my problem. Good Luck!

You need to take a pressure and volume measurement, most fuel pressures for a carburetor engine are 3 to 7 psi, then you need to make sure the volume is consistent for a period of time, 20 to 30 second of engine cranking while the fuel is transferred to a container of some sort, make sure the ignition system is disabled to prevent you from blowing up the property.

had same problem with 00 dodge neon between half and quarter tank going up steep hills it would lose power and stumble,at quarter it would start to stumble and stall.fuel filter was completly blocked after changing fuel filter it would not stall,when gas tank was low fuel pressure would go down,changed fuel pump and it did it