temp freezing or below? could be water in the fuel. could be 1 or more failed injectors. could be the lift pump. being an 01, i'd think maybe injectors unless they've already been updated.
There is no pump in the tank. It is pulled by the injection pump....that is why most people install lift pumps. Your fuel system is under a vaccuum while running.lying bastages. Oh well , I will check those things you said and see what the deal is. I thought that it did have a lift pump?? Crazy, so that means the only pump is the one in the tank?