Delphi fuel modules are designed to deliver an immediate, uninterrupted flow of fuel to the engine's fuel rail and injectors at the specified system pressure, and operate more efficiently. Additionally, where required, our fuel modules include integrated fuel level Sensing components that deliver an accurate reading of the fuel level in the tank to the fuel gauge. Fuel modules also typically include a fuel vapor pressure Sensor that detects any leaks in the fuel tank or associated evaporative emissions components.