I have the above let the car sit for a few weeks and the one of the fuel pumps quit replaced it. it used ti have an engine warning light come on when started but amnot seeing any warning light anymore i dont have a diagram to trace the wiring and the previous owner put the fuel pump on a toggle switch and dont know where the original fuel pump wires went but if i toggle the fuel pump off while cranking and back on it will start severly overfueling and wont idle tried to drive but not sure where to start thought it might have been getting too much fuel from the new pump so i diconnected 1 still same issue not sure how electronic/mechanical fuel system work together could not find power on any of the sensors/switches on the fuel distributor HELPPPPP

 

anyone work on/with mercedes???

 

any clues????