Is it necessary to clean the fuel injectors? How often should they be cleaned?

[McElla]

Fuel injectors generally need to be cleaned every 2 years or every 50,000 to 80,000 kilometers, depending on the quality of gasoline in the region where the vehicle is used. Cleaning the engine fuel injectors is essential. Dirty fuel injectors can lead to increased fuel consumption, insufficient power, idle shaking, and a series of other faults. The clogging issues of fuel injectors mainly occur in three areas, as described below: 1. Clogging of the inlet filter screen. Impurities or gum deposits in gasoline adhere to the filter screen, weakening the fuel flow capacity and, in severe cases, affecting the injector's flow rate. 2. The sealing surface at the injection hole of multi-point injection fuel injectors. If gum deposits adhere here, it can cause poor sealing, leading to injector leakage. 3. Blockage of the injection holes. Fuel injectors typically have multiple injection holes. Although these holes are not metering orifices, they affect atomization. If multiple holes are blocked, it can also impact the fuel injection volume.