So many codes

So so I finally was able to scan my ECU today (light came on this morning again) heres some of what i got
P0116- Engine collant temperature circuit range/performance problem
P0170- Fuel trim malfunction (Bank no 1)
P0172- System too rich (bank no. 1)
P0175 System too rich (bank no. 2)
P0189 Fuel temperature Sensor "B" circuit intermittent
P0190 Fuel rail pressure sensor circuit malfunction
P0268- Cylinder no. 3 injector circuit high

Any i deas how to fix anything?
I thought if anything I was running lean, but im rich!!
Fuel filter is like 5 years old (not my fault)

how many modifications do you have?

Where is there a fuel rail pressure sensor??