SYSTEMS AND METHODS FOR VEHICLE FUEL SYSTEM AND EVAPORATIVE EMISSIONS SYSTEM DIAGNOSTICS

Methods and systems are provided for a fuel system of a hybrid vehicle. In one example, a system may include a fuel tank selectively fluidly coupled to a fuel vapor canister via a first conduit that includes a fuel tank isolation valve and via a second conduit that includes a tank pressure control valve and a pump. In one example, the pump is a vacuum pump.