What are the symptoms of a faulty car fuel injector?

1 Answers
LaDelilah
07/25/25 1:40am
The symptoms of a faulty car fuel injector include: the injector malfunction leads to severe carbon buildup in the engine cylinders, accelerated wear of cylinder liners and piston rings, resulting in unstable idle, increased fuel consumption, lack of acceleration power, difficulty starting, and excessive vehicle emissions. In severe cases, it can even damage the engine. Below is more information about car fuel injectors: 1. As one of the key components of an electronic fuel injection engine, the fuel injector determines the engine's performance. The injector itself is a solenoid valve with a simple principle: when the electromagnetic coil is energized, it generates suction, lifting the needle valve to open the injection hole. Fuel is sprayed at high speed through the annular gap between the needle valve head and the injection hole, forming a mist that facilitates complete combustion. 2. After a car has been driven for some time, certain deposits will form in the fuel system. The formation of these deposits is directly related to the car's fuel: firstly, gasoline itself contains colloids and impurities, or dust and impurities introduced during storage and transportation, which accumulate over time in the car's fuel tank and fuel lines, forming sludge-like deposits. Secondly, unstable components in gasoline react at certain temperatures to form colloids and resin-like viscous substances. These viscous substances, when deposited on the fuel injector, intake valves, and other parts, turn into hard carbon deposits during combustion.
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