1993,ISUZU,RODEO

THE SUV WILL CRANK UP AND RUN FINE BUT WHEN YOU CUT IF OFF, IT WILL TURN OVER BUT WILL NOT START. YOU CAN HOLD DOWN THROTTLE AND IT MIGHT SPUTTER A LITTLE LIKE IT STARVING FOR GAS. IF YOU LET IT SIT AWHILE SAY AN HOUR OR SO, IT WILL START UP FINE UNTIL YOU CUT IT OFF AGAIN AND DOES THE SAME THING OVER AGAIN. ANY SUGGESTIONS?