spark and fuel...that's what it takes to run. you can jump the pins of the fuel pump relay to bypass the need for the relay...that is if the relay is bad. Before that, crank with open fuel line near Fuel Pressure regulator...if no fuel, Then jump the FP relay to be sure it is not a faulty relay causing the fuel pump to not work. IF not the relay then it is most likely the fuel pump that is faulty. Do you hear the fuel pump turn on. Take out hte back seat and listen carefully.