Hi everyone i'm trying to find out where my Fuel Rail Pressure Sensor Circuit High Input is located, i think its part of my fuel pump but not sure and if so do I have to replace the whole pump. See I got a code P0193 which listed several things: one being the fuel filter, changed that didn't help. Second listed was the fuel pressure sensor, have no idea where this is located. Third listed was the fuel pressure regulator, have no idea where this is located on this vehicle, on older vehicles it is located on the fuel rail. Help please. Oh I was told that either the fuel pressure regulator and the sensor are dealer items, is this ture?