Systems and methods for venting a pressurized fluid used as a fuel in an engine

A system and method for venting gaseous fuel from an engine of an engine system are described. The engine system includes multiple vent valves that allow a controller of the engine system to vent different volumes of a fuel feed line that deliver the fuel to the engine. An engine purge controller controls the closing of isolation valves and the opening of vent valves to reduce a probability of fuel remaining in an isolation portion of the fuel feed line. The engine purge controller further controls the introduce of a purge gas to purge portions of the fuel from the fuel feed line through one or more of the vent valves.