Ok, Item number 2 above is the hot start valve, right? And has the Fuel Pressure Regulator attached to it and a vacum hose that leads back down to the inlet manifold.
What I want to know is basically how it operates and more importantly what the little thing sticking out the back does? and should it be attached to anything. Mine appears to of snapped off you see. (its the little sticky out part at the exact opposite end to the electrical plug connection).