Hey Muzila, did you ever get to the bottom of this?
My truck has done the same this morning!
Waterblasted the crap out the engine bay last night, drove 12+km this morning then it died.
Found fuse C-9 (15amp) to the fuel cut solenoid had blown. Changed it and got another 0.5km before it blew.
...carried on to work on foot!
I'm guessing that water has got into the solenoid causing a short.
Looking forward to investigating tonight...not!