QC002254
Fuel Injection Rail Pressure Limiter
Mitsubishi FUSO®

The Fuel Injection Rail Pressure Limiter, also known as the Fuel Pressure Regulator, is a vital part of the fuel system in a commercial truck. Its primary function is to regulate the pressure of the fuel that is delivered to the fuel injectors. This is important because if the fuel pressure is too high, it can cause damage to the fuel injectors and other engine components. On the other hand, if the fuel pressure is too low, it can result in poor engine performance and fuel economy. The Fuel Injection Rail Pressure Limiter achieves this by controlling the flow of fuel through the fuel rail. It is designed to maintain a consistent fuel pressure, regardless of the engine load or RPM. This ensures that the engine is receiving the correct amount of fuel at all times, which is essential for optimal performance and efficiency. If you are experiencing issues with your fuel system, such as poor fuel economy or engine misfires, it may be time to check your Fuel Injection Rail Pressure Limiter.