studders at stops in 93

i have a 93 and somtimes when the gas is below 6 gal or less the car will studder and die when i go to stop but if it has more gas everything is fine?? maybe bad fuel pump idk????? please help this gets very annoying

Some basic diagnostics here, have the fuel pressure tested.

I seem to recall there was an issue with these cars where a right-hand turn with a low tank would expose the fuel pick up in the tank. I believe a new fuel pump (in the tank) was the remedy.