An engine fuel system comprising: a supply arrangement including at least one pump for providing an outlet flow of fuel; a bypass metering system in fluid communication with the supply arrangement and supplied by the supply arrangement with the outlet flow of fuel at pressure, the bypass metering system including a fuel metering valve and a bypass regulator in fluid communication with an inlet of the fuel metering valve and an inlet of the at least one pump, the bypass regulator is operably connected to detect a pressure of the metered flow of fuel from the fuel metering valve, the bypass regulator operable to bypass at least a portion of the outlet flow of fuel from the at least one pump back to the inlet of the at least one pump; a parallel metering system for providing fuel to multiple combustor locations via multiple metered flow paths arranged in parallel, the parallel metering system including a primary regulated circuit and at least two secondary metering circuits (124, 126) arranged in parallel with the primary regulated circuit, the parallel metering system in fluid communication with the bypass metering system such that it receives a metered flow of fuel from the fuel metering valve of the bypass metering system, wherein each of the secondary metering circuits includes a secondary metering circuit fuel metering valve and a throttling valve operably connected to an inlet and an outlet of the fuel metering valve to maintain a substantially constant pressure differential across the fuel metering valve; and wherein the primary regulated circuit includes a parallel pressure regulator that is operably connected to the primary regulated circuit and the at least two secondary metering circuits to detect a pressure (P-Pn, SMI-Pn, SM2-Pn) in each of the primary regulated circuit and at least two secondary metering circuits, wherein the parallel pressure regulator is operably connected to the at least two secondary metering circuits downstream from the throttling valve. a supply arrangement including at least one pump for providing an outlet flow of fuel; a bypass metering system in fluid communication with the supply arrangement and supplied by the supply arrangement with the outlet flow of fuel at pressure, the bypass metering system including a fuel metering valve and a bypass regulator in fluid communication with an inlet of the fuel metering valve and an inlet of the at least one pump, the bypass regulator is operably connected to detect a pressure of the metered flow of fuel from the fuel metering valve, the bypass regulator operable to bypass at least a portion of the outlet flow of fuel from the at least one pump back to the inlet of the at least one pump; a fuel metering valve and a bypass regulator in fluid communication with an inlet of the fuel metering valve and an inlet of the at least one pump, the bypass regulator is operably connected to detect a pressure of the metered flow of fuel from the fuel metering valve, the bypass regulator operable to bypass at least a portion of the outlet flow of fuel from the at least one pump back to the inlet of the at least one pump; a parallel metering system for providing fuel to multiple combustor locations via multiple metered flow paths arranged in parallel, the parallel metering system including a primary regulated circuit and at least two secondary metering circuits (124, 126) arranged in parallel with the primary regulated circuit, the parallel metering system in fluid communication with the bypass metering system such that it receives a metered flow of fuel from the fuel metering valve of the bypass metering system, wherein each of the secondary metering circuits includes a secondary metering circuit fuel metering valve and a throttling valve operably connected to an inlet and an outlet of the fuel metering valve to maintain a substantially constant pressure differential across the fuel metering valve; and wherein the primary regulated circuit includes a parallel pressure regulator that is operably connected to the primary regulated circuit and the at least two secondary metering circuits to detect a pressure (P-Pn, SMI-Pn, SM2-Pn) in each of the primary regulated circuit and at least two secondary metering circuits, wherein the parallel pressure regulator is operably connected to the at least two secondary metering circuits downstream from the throttling valve. a primary regulated circuit and at least two secondary metering circuits (124, 126) arranged in parallel with the primary regulated circuit, the parallel metering system in fluid communication with the bypass metering system such that it receives a metered flow of fuel from the fuel metering valve of the bypass metering system, wherein each of the secondary metering circuits includes a secondary metering circuit fuel metering valve and a throttling valve operably connected to an inlet and an outlet of the fuel metering valve to maintain a substantially constant pressure differential across the fuel metering valve; and wherein the primary regulated circuit includes a parallel pressure regulator that is operably connected to the primary regulated circuit and the at least two secondary metering circuits to detect a pressure (P-Pn, SMI-Pn, SM2-Pn) in each of the primary regulated circuit and at least two secondary metering circuits, wherein the parallel pressure regulator is operably connected to the at least two secondary metering circuits downstream from the throttling valve.