How to Solve Low Rail Pressure?
1 Answers
Introduction to solving low rail pressure: The high-pressure fuel rail is used to store fuel and suppress pressure fluctuations caused by the high-pressure pump supplying fuel and the injector spraying fuel, ensuring system pressure stability. The gasoline filter should be checked to see if it is clogged. If the gasoline filter is clogged, it is recommended to replace the gasoline filter. Here are the reasons for low rail pressure: 1. If the fuel line is clogged or there is too much water in the fuel, it can cause low rail pressure. If both are fine, then the issue lies with the common rail or the injector. 2. All cylinder injectors are connected to a common fuel pipe (referred to as the fuel rail), which maintains constant pressure. If it is damaged, it can lead to low rail pressure. 3. The high-pressure fuel pump delivers fuel to the rail, which then supplies it to the injectors. Each injector is connected to the common fuel rail via a separate high-pressure fuel line. If it is clogged or damaged, the pressure will be low. 4. After troubleshooting the vehicle, it is often necessary to clear the fault codes. When clearing fault codes, be sure to follow the specified method for the particular vehicle model.