Engine Oil Pressure

How would I go about regulating the engine oil pressure so as to turn off the annoying "low oil pressure" warning lights? I assume it is somewhere in the aircraft.cfg file. Even at full throttle the oil pressure stays too low to turn off the warning lights. The aircraft in question: DeHavilland Caribou C7 Bluestream Airlines; the default panel.
bilben94@gmail.com
bilben94@gmail.com