Why does the engine speed increase after cleaning the throttle body?

[LaCarter]

The reason for the increased engine speed after cleaning the throttle body is that after the sludge in the throttle body is removed, the ECU still controls the throttle opening according to its memory, resulting in a corresponding increase in air intake at this opening. Throttle body cleaning interval: It is generally recommended that car owners clean the throttle body every 20,000 to 40,000 kilometers. However, this is only a reference value. The specific cleaning interval should be determined based on individual driving conditions, air environment, type of engine oil used, air filter replacement interval, and driving habits. Symptoms indicating the need for throttle body cleaning: If you notice insufficient engine air intake, unstable idle speed, a sudden feeling of throttle release while driving, reduced power, or even difficulties in starting the engine and increased fuel consumption, it may indicate that the throttle body needs cleaning.