Fuel Pump

First make sure you have enough gas. Don't trust the gauge.
You need gas and spark. Make sure you have spark. If you do make sure the gas is at good pressure. If it is. Make sure the injectors are firing. If the above to check out. Then Make sure you have compression. If it isn't one of these three problems then the timing sensors are messed up and you'll have to trace through the system if you have no codes. But make sure you have a (strong blue) spark and gas, then compression, to find your problem.