Truck won't start

I'm not sure about engine litre size, or if it makes a difference? If it cranks good but won't start, check for more than one problem. Have a helper crank it while you check for spark at the spark plugs, gasoline engine. If no spark--no fuel pump and no fuel injector pulse, check the cam and crank sensor signals. Of course if fuel pump the only problem then check fuel pump wiring connector for voltage and ground. Check the fuel pump relay. This a gasoline engine? No code tells you what to replace, just that the system thinks that component has a problem somewhere, it could be the component wiring where applicable, block passages, yes, it could be the component, itself.