2008 Grand Vitara Engine shut down while driving on 2008 Suzuki Grand Vitara

V-6 2.7...not sure what happened, just cruising along at about 75 mph and no power, the rpms slowly decreasing to complete shut down...tried to restart and it seemed to spit and sputter a little but never to idle rpm...please help...never had a problem until now.

Asked by for the 2008 Suzuki Grand Vitara
I say, start with simple first, does it have fuel in the tank? Check all of the fuses, also.
thanks! the fuel is good over a half a tank... checking the fuses now...update, all fuses good...pulled plugs and have spark...pulled HP Fuel line and no fuel when ignition is turned on...