Hi,
I have the same issue on PC with the msfs marketplace version.
After install the P40f, if i fly it in the same msfs session, the fuel pump works normally, but next time i launch msfs i can no longer activate it.
The switch remains in Off position (down) and there is no more tooltips name displayed.
If i use Ctrl+E, the engine starts but, the fuel pump switch remains in off position.