Ref Static Fuel Pressure (Prim) :: Emtron Resource Centrehttps://docs.emtronaustralia.com.au/engine-management/config/fuel/ref-stati-fuel-pressure-prim/index.htmlRef Static Fuel Pressure (Prim) Reference static fuel pressure is set without the engine running at the current barometric pressure. It is important that this setting is correct especially when the fuel pressure is enabled as part of the “fuel model”. The ECU will correct the fueling if the fuel pressure goes above or below the differential fuel pressure.Hugoen-us