One trick I was taught is to connect the pump cables to the opposite ECU's if you have a twin engine plane that yaws badly on a single flameout. That way the still running engine's pump is shut down by the feedback from the flamed out engine. This does cause a dead stick, but sometimes that is more desirable than any thrust, even idle thrust, on one engine alone.
Len
This is not correct, what we did was to cross conecting the fuel valves, not the pumps. And this was in the gas start engines, with kero start engines the startup could be really interesting with cross Connected valves.
Gaspar