when I leaned it up and would crank over but not start. I checked the fuses all good. Then I unplugged the ECM and plugged it back in and it started up. I have started it about 10 times now and no problem, was it just a bad connection? I have an 08 electra glide ultra.

 

First thing that comes to mind is a little corrosion on the plug terminals, that rubbed off enough just from plugging and unplugging the connection.

You can work your way through all the connections checking them, and checking the electrical system, or wait to see if it happens again.