Suddenly dies completely, but restarts OK means an intermittent somewhere in the ignition or fuel injection.
I'd try sending the RCM ( K40 ) to tighed1 and include a note requesting he replace the fuel relay ( along with $25 ).
Other than that, if it is ignition related, then you seem to have covered the 2 CPS ( crank and cam ).
This leaves circuitry, ECM, SKREEM. ( no fun there at all ).
Could try cleaning the Crank sensor connector real good.