What are the causes of excessively high fuel rail pressure?
1 Answers
Reasons for excessively high fuel rail pressure in diesel common rail injection vehicles: electrical circuit faults; caused by pressure relief in the high-pressure common rail system. Excessive engine oil viscosity; significant pressure fluctuations in the fuel lines; discrepancy between the diesel injection pump and the actual fuel injection quantity. Extended relevant information is as follows: Introduction: Electronically controlled fuel injection vehicles refer to those equipped with an electronic control fuel injection system. Electronically controlled fuel injection vehicles are abbreviated as "electronic control gasoline injection engines". Gasoline injection: Gasoline injection involves using injectors to spray gasoline in a mist form into the intake manifold, intake ports, or cylinders under low pressure (260~350kpa), where it mixes with air to form a combustible mixture.