1987 740 GLE B230F cranks great but will not start. Currentlyreplacing the coil and there is a part connected to the coil I haven't been able to identify. Would like to know aboutthe small black box,about 1"x1"x1.5", mounted on coil bracket,connectedbyone wire to the coil. Thislittle black box is connected to the + side of the coil on the lead next tothe blue wire and ared and white wire is connected to - side of coil.

Is the little black boxa resistor? Can it be tested? Is a replacement part available? Isit required in order for coil to work and make car start?Thanks very much for any help.

 

Well, my coil replacement worked and thecar runs great again. I'm still curious about thelittle black boxabout 1"x1"x1.5", connected to the + side of the coil. I can't find that part described inHaynes manual or auto parts stores. If I disconnect it (permanently) from the coil, does anyone know if that wouldcause problems? Thanks very much for any help.