The fuel injection nozzle on a car is a crucial part of the internal combustion engine. It sprays fuel into the combustion chamber of the engine through atomization, allowing the fuel to mix with air for combustion. The performance of the fuel injection nozzle has a direct bearing on the efficiency, power output, and emission cleanliness of the engine.

Main functions of a fuel injection nozzle:

Fuel atomization: The fuel injection nozzle sprays liquid fuel as tiny particles into the cylinder to achieve desired atomization effect that helps improve combustion efficiency.

Accurate control of fuel quantity: The fuel injection nozzle controls the fuel injection quantity accurately based on different working conditions of the engine (such as speed and load) to maintain optimal air-fuel ratio.

Increase combustion efficiency: By providing an appropriate quantity of fuel, the fuel injection nozzle can increase combustion efficiency, thereby improving engine power and fuel efficiency.

Common symptoms of a failed fuel injection nozzle:

Engine vibration or loss of power: Blocking or failure of the fuel injection nozzle may result in insufficient fuel supply, and consequently cause unstable idle status and lack of power of the engine.

Higher fuel consumption: A failure of the fuel injection nozzle may result in leakage in the fuel circuit or uneven fuel injection, leading to lower fuel efficiency.

More emissions: If the fuel coming out of the fuel injection nozzle is not properly atomized, the unburned fuel will increase pollutant emissions.

Abnormal noise: A mechanical failure in the fuel injection nozzle may produce abnormal noise.

Causes of failures of a fuel injection nozzle:

Carbon deposition in the fuel injection nozzle: Incomplete combustion of fuel may occur after long use, giving birth to carbon deposits and affecting fuel injection efficiency.

Fuel supply system issues: Unstable fuel pressure or excessively high fuel temperature may damage the fuel injection nozzle.

Fuel quality issues: Use of inferior fuel may pollute the fuel injection nozzle and shorten its service life.

Design defects or quality issues of the fuel injection nozzle: Some fuel injection nozzles may have defects in their design or manufacturing process.

Valve not fully closed: A valve that is not fully closed in time may lead to fuel leakage and interfere with normal work of the fuel injection nozzle.

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Advantages of vika fuel injection nozzle:

The cleanliness of the parts of vika fuel injection nozzle reaches Class AA.

Thanks to an ultra-precision machining process in Switzerland, vika fuel injection nozzle provides better atomization effect.

The parallelism of the gasket is 1u, and the grading accuracy is 0.002 mm, superior to the level of aftermarket products.

The return fuel amount of vika fuel injection nozzle is 30% lower than the original products, thus helping improve engine efficiency.