PO 193 Fuel Rail Pressure Sensor Circuit High imput on 2005 Ford Focus

Where is this sensor located, and how hard is it to replace

Asked by for the 2005 Ford Focus
On the fuel rail! Not hard! Fuel under pressure!!! Even with engine off!!!
so can a normal person replace this? if not how much should this cost?
If this normal person is just a little car savvy, yes! Just loosten the two bolts slowly to relieve the fuel pressure.