Will the Fuel Injector Get Damaged if Water Enters?

[OSilas]

Automotive fuel injectors are difficult to damage; they usually only get clogged. The Function of Fuel Injectors: The role of a fuel injector is to precisely deliver fuel into the engine for combustion. A car fuel injector is a simple solenoid valve. When the electromagnetic coil is energized, it generates suction, lifting the needle valve to open the injection port. Fuel is then sprayed at high speed through the annular gap between the needle valve head and the injection port, forming a mist for efficient combustion. Fuel Injector Spray Methods: There are two types of fuel injector spray methods. One is port fuel injection (PFI), where fuel is sprayed into the intake manifold, and the other is direct injection (DI), where fuel is sprayed directly into the cylinder. While their structural principles are the same, the pressure they withstand differs. The fuel line pressure for port fuel injection is typically 2-8 kg/cm², with residual pressure after shutdown being around 1 kg/cm². This parameter is also used to diagnose fuel line issues. In contrast, direct injection operates under high pressure, with fuel line pressures reaching 24-200 kg/cm².