Engine stalls

Is the fuel pump still running when you turn off the key or are the fuel injectors actually dripping? If the later, then you will have to replace the fuel injector that is dripping. If the prior, just for now, try a new fuel pump relay and see if the fuel pump stops running when it should, when the key is turned off.

This sounds like you have a shorted injector or a injector driver that is stuck in the PCM can you unplug them to see if they still drip?

Cheers, Ken

It is my understanding that those fuel injectors should not even have any voltage available to them from the ECM/ignition fuse at the red and white wires of the fuel injectors when the key is turned off, so regardless if the fuel pump runs still or not, the fuel injectors should still not even have power to them, nor a ground pulse, so they should not be pumping fuel when the key is off. Unless of course someone jumped those injector red and white wires to a twelve volt source that is hot all the time, or that pink wire from the fuse to the red and white splice is shorted to twelve volts, either both red and white wires are shorted to twelve volts or the fuel injectors are in fact just dripping gasoline because they are stuck open because of dirt or whatever.