6 trouble codes 2005 Ford Focus

Question

2005 ford focus 2.0L duratec 5 speed 2 codes for P0171 -System too lean (Bank 1)2 codes for P0191 - Fuel Rail pressure sensor Range/PerformanceAnd code P0420 - Catalyst System Efficency Below Threshold (Bank 1)Car runs and drive fine until warm, the starts to chug and buck when throttle is applied. Shut the car off for a few seconds and start it back up and it's fine for a few minutes before returning to the same issue. When running it smells like raw gas. Help.