I cant fix this thing...
I went out one day and my 1991 Montero 3.0L 4X4 started and ran for about 10 seconds then went dead, it did this several times (right before it went dead I would hear a click) then it just stopped starting completely... I replaced ECM relay and it did the start and go dead sequence again so I replaced the distributor and module as well as checked the fuel pressure and as much wiring as I can see and still nothing.. I finally replaced the ECM and it did the start and go dead sequence again only this time the ECM started smoking on the final start.

Ive done the following:
ECM, ECM Relay, Distributor, Module,checked fuel pressure, and visually checked all the wires I can see...

Thanks in advance for any help you can provide!