How many volts should a 95 cutlass supreme oldsmobile put out

Hello , not sure what you mean by , keeps stoppin , but if you mean engine quits running, you need to check fuel pressure when the situation occurs, you should have 38 - 40 psi .. if thats good more than likely you are dealing with a crank sensor problem .. also you may have a fuel injector that bad , if one injector goes bad then this will shut the driver down in the computer all together...