Can accurately adjust fuel pressure according to different engine operating conditions, ensuring that the difference between fuel pressure and intake manifold pressure remains constant It can smooth the changes in oil pressure and prevent instantaneous pressure fluctuations caused by changes in engine operating conditions, effectively avoiding damage to injectors and oil circuits caused by high or low oil pressure The fuel injector can inject fuel at a stable pressure, allowing the electronic control unit to accurately control the fuel injection quantity by controlling the injection time, ensuring the combustion efficiency and stable power output of the engine The fuel pressure regulator has good adaptability and can be perfectly matched with various types of car engines Some fuel pressure regulators adopt a simple and compact design style, with a small volume that is easy to install in the fuel systems of various vehicle models without taking up too much space 93328341 Fuel Pressure Regulator 3.8 Bar，Compatible For Fiat Stilo Ecosport Focus GM Meriva Montana Corsa Astra PR4076