I have a 02 mazda protege5, changing out the fuel pump a black wire came out of somewhere, not sure where, but it seems to be a ground wire, it's a small thin one, this is the pump I have but can not tell from this where it goes. Hoping this is the issue with why i'ts running so rough, any help? ideals? http://i1358.photobucket.com/albums/q773/Paul_Brandon/FilterHousing_zps8be50bcd.jpg