BMWs may experience fuel pressure regulator failure for a number of reasons. The fuel pressure regulator is an extremely important component in BMWs to keep them on the road and out of the repair shop. Below, you will learn more about the typical causes of fuel pressure regulator failure in BMW and what to do should your vehicle experience failure of this intricate part. What is a fuel pressure regulator? The purpose of a fuel pressure regulator is just as it sounds, it regulates the pressure of the fuel as well as the amount of fuel being sent to fuel injectors on automobiles that are equipped with direct injection. The amount of fuel that an engine needs is dependent upon the driving habits of the driver. For a vehicle to start, ignition within the combustion chamber must be ignited by the most appropriate air to fuel ratio with the help of the fuel pressure regulator. When this part begins to fail, the fuel mixture become [...]