How to Detect if the High-Pressure Fuel Pump is Damaged?

[VanRonan]

Detecting whether the high-pressure fuel pump is damaged involves observing the following symptoms: 1. Weak acceleration; 2. Severe engine shaking; 3. Difficulty starting the car; 4. Unstable idle speed; 5. Abnormal engine stalling, etc. Issues with the high-pressure fuel pump are generally caused by blockages, oil leaks, or mechanical failures. The fuel pump is a critical component of the fuel system. If the pump malfunctions, the fuel system cannot operate properly, leading to the car failing to start. Conventional fuel-injected engines typically have only one fuel pump, which is the gasoline pump located inside the fuel tank. The high-pressure fuel pump is an additional pump found in direct-injection engines, but unlike the standard gasoline pump, it is not installed inside the fuel tank. The high-pressure fuel pump is usually located in the engine compartment.