What are the symptoms of a malfunctioning fuel injector?

[DiAngela]

Symptoms of a malfunctioning fuel injector: 1. Engine shaking: When the fuel injector is damaged and fuel injection is obstructed, the engine may exhibit operational shaking during operation; 2. Reduced power and increased fuel consumption: As the fuel injector deteriorates, the fuel injection volume and pressure cannot be guaranteed, leading to symptoms such as decreased vehicle power and increased fuel consumption; 3. Increased tailpipe emissions pollution: Faulty fuel injectors inevitably affect the mixing and combustion of the air-fuel mixture, resulting in increased pollutant emissions from the vehicle's exhaust; 4. Difficulty starting or even stalling: If the fuel injector is severely damaged, the vehicle may experience difficulty starting or even sudden stalling while driving; 5. Engine misfire: If the fuel injector of a specific cylinder is severely damaged, the engine is highly likely to misfire, causing severe shaking of the engine; 6. Black smoke from the exhaust: As the fuel injector fails, the atomization of fuel and its mixture with air cannot be ensured, leading to incomplete combustion of the air-fuel mixture, resulting in black smoke from the exhaust and increased engine carbon deposits.