Same part number, same manufacturer. I believe that the pump is working perfectly, but as mentioned here it must be something with the lines...
willz you said something about something in one of the hoses? Could you specify?
tweed regarding the fuel filler flap I'm not entirely sure what you mean. Do you mean the cover that reveals the fuel cap? Does yours open electronically? - mine opens just by pressing on one side of it.
Anyway, checked the lines in the door connectors and they seem fine, which actually is annoying, as I could imagine that those were the most prone to splitting, which means I don't know where to look from now :p...
Any suggestions?