What is the cleaning cycle for fuel injectors and throttle bodies?

[DeAniyah]

Fuel injectors are generally cleaned every 2 years or 60,000 kilometers; throttle bodies are typically cleaned approximately every 20,000 kilometers. Below is an introduction to the effects of not cleaning fuel injectors and throttle bodies: 1. Slightly dirty: There is no impact on the vehicle, no fault symptoms, and it can be left uncleaned while still allowing normal vehicle operation. 2. Moderately dirty: May cause abnormal noises during engine operation, and failure to clean may lead to increased fuel consumption, reduced power, and worsened driving comfort. 3. Severely dirty: Can result in the vehicle having no idle speed, stalling as soon as the accelerator is released, making normal driving impossible. In this case, cleaning is mandatory. The extent of dirtiness can be detected by using a computer to measure the throttle opening at idle. Without a computer, you can open the throttle intake hose and visually inspect the level of dirt; a slightly experienced maintenance technician can also determine the degree of dirtiness.