Dual variable displacement pump fuel system with FOC bypass and washed actuation flow

A system includes an actuation pump sub-system (APS) with an inlet configured to feed fuel from a fuel source into the actuation pump sub-system, a first outlet configured for connecting the APS in fluid communication with an afterburner selector valve, a second outlet, and a third outlet for connecting the APS in fluid communication with an actuation system to supply washed fuel flow for actuation. A main pump and control sub-system (MPCS) has a main inlet connected in fluid communication with the supply line downstream of the second outlet of the APS, and a main outlet for supplying fuel to a downstream gas generator. An afterburner pump in fluid communication to supply an afterburner control. An afterburner selector valve (ASV) in fluid communication with the MPCS, the wash line, and the afterburner pump.