Got a 2.0litre mk1 Focus, swapped the engine over, and I've got no fuel coming from the fuel pipes at all. The engine runs if you put some petrol in the inlet. But doesn't seem to be anything from the tank. Unpligged the fuel lines just before injector rail, and just before fuel filter and there's nothing. Bypassed the fuel inertia switch just in case and changed the fuel pump, you can hear the pump primimng but nothing else happens. Anyone got any ideas what the problem might be?