What Causes Engine Shaking After Throttle Body Cleaning?

[OAriel]

The causes of engine shaking after throttle body cleaning include severe engine carbon buildup, ignition system issues, unstable fuel pressure, and aging engine components. If experiencing idle shaking, the owner can first perform an engine cleaning, replace spark plugs, and check the fuel supply pressure. Throttle body cleaning is one of the regular maintenance tasks required for engines. For direct injection engines, the throttle body should be cleaned every 20,000 kilometers, while for port fuel injection engines, it should be cleaned every 40,000 kilometers. Severe carbon buildup in the throttle body can affect the vehicle's idle, fuel consumption, power, and air conditioning functions.