Buy a cheap Multi meter Cameron. These will help.
Simple diagram showing earth/ground:
http://www.veryuseful.com/mustang/te...ainHarness.gif
For all things fuel injection on Ford:
http://fordfuelinjection.com/?p=1
Shows volts at each point:
http://fordfuelinjection.com/?p=6
Last check the coil to make sure it is getting current and working!