no glow plug light, no diesel coming through, slight leak at top of fuel pump

So far ive checked all fuses and unplugged/plugged most things back in. Tested power on glow plugs-nothing there. Cracked injectors and nothings coming through. Taken ECU out and opened it up but nothing obvious.
Next on the list is fuel filter and small filter on fuel pump.
Im leaning towards ECU from what ive read but maybe someone else has had this before?
Any help or opionions greatly appreciated
