5.7L Mercruiser fuel relay not picking up when key on

[Howieis5]

I have a starboard engine that is not starting.when key is on fuel relay not picking up.when. I put a ground to the relay coil it works.I do not seem to be getting a signal from the ECM 555.Can anyone help?

 

[wrench 3]

Check for spark. If you don't have primary ignition it won't try to deliver fuel.