2001 BMW 325 wont start

Well my car blew head gasket so I had the head milled and new head gasket installed and inspected and car is back together. Followed service book page by page. Batteries are in good condition and engine turns smooth with starter but does not start. Hot good fuel pressure to top of the engine right before it goes to fuel injecters. Tested first spark plug but no spark but test dc volts on spark plug wire it has good voltage but it acts like it not getting the command to spark. Alarm codes been cleared and has few codes like EML. But service book said it will start with eml code but it wont? All the ground wire is hooked up and all wire is hooked up. Why is it not starting? All the electrical things in the car works like lights window, heater, cd, everything but wont start.