SYSTEMS AND METHODS FOR REDUCING SADDLE FUEL TANK DEPRESSURIZATION TIME

Methods and systems are provided for diagnosing valves of a fuel system. In one example, the fuel system is configured to reduce a depressurization time of one or more fuel tanks arranged therein. A method for diagnosing the valves includes monitoring a number of pre-mature shut-off events during a refueling event to determine if the valves are degraded.