Curious if this would work with a 0% battery, or no battery at all (completely disconnected). Assuming absolutely no power, the electric fuel pump, and high pressure pump, would not feed fuel, therefore even tho the engine would crank I don't think it would actually start. Maybe if you could get some revolutions the alternator would generate enough juice to push some fuel. But with no battery there is no way to engage accessory mode, or switch 'on' the ECU and the pumps would probably stay 'off'. And would steering column lock disengage with no battery?