The fuel pressure regulator helps maintain the fuel at the proper pressure as it travels to the injectors. Excess fuel returns to the fuel tank through the fuel return line.
Symptoms of Wear or Failure
- Fuel leak
- Incorrect fuel pressure
- Illumination of the Check Engine Light
Related Repair Advice
- The fuel pressure regulator can leak directly into its engine vacuum supply hose, causing various drivablity issues, but no visible fuel leak