Hi, thanks in advance for any relevant info on this no start problem that just gets more and more mysterious. had a fuel pump go(possibly something else as well) Now have a used but working(as best I can tell) pump. My car has only one in tank pump. Car turns over strongly but no start. Spark tests good, just cannot get the fuel pump to run unless I connect it directly to the battery. With the relay or a jumper in place I blow a fuse every time. Have established continuity between relay socket that goes to pump and connector and resistance test read zero resistance. Have good ground at connector. Pretty much ruled out ignition switch, ruled out errant code issue from OBC. Main relay seems fine. Can't test fp current draw because of blowing fuses.. Idle air stabilizer valve seems OK, as well as injectors. In the bentley manual electrical tests for the fuel system(at the motronic connector) everything checks out except the full throttle switch (related? or an adjustment thing) and the "FP relay control" (test blows the fp fuse as well) Air flow sensor and potentiometer seem fine. Have I missed something? Unfortunately real low on money so I'm limited in what else I can replace to solve this (for now). Has anyone had this problem? I'm stumped- and this is weekend three without the whip..