Why does the throttle of automobile engine produce carbon deposit?

Engine carbon deposition is caused by insufficient mixing of "coke" or "sulfur" substances in gasoline with some engine oil escaping into the combustion chamber and poor combustion, which generally appears at the top of piston, cylinder head, spark plug, valve and exhaust pipe! As for the dirt in the accelerator, it's just dust that hasn't been filtered clean.

Ways to remove carbon deposits: 1. Increase the number of marked gasoline (97#) to drive at a speed of more than 90 yards for more than half an hour, or add additives to remove carbon deposits in gasoline! Second, for vehicles that have leaked oil, only piston rings and valve oil seals can be replaced. Third, for cars whose cylinders have been seriously worn, only piston rings and valve oil seals can be replaced! Methods to clean the dirt on the throttle: 1. Remove the intake pipe to expose the throttle. One person keeps the engine in the car for 3000~3500 rpm, and the other person sprays the throttle with "carburetor cleaner" (note: don't spray too much each time, otherwise the engine will stall). General spray 1/3 bottles! Second: remove the intake throat, expose the throttle valve, remove the negative battery (please note that the negative battery must be removed), turn off the ignition switch, straighten the throttle plate, spray a small amount of "carburetor cleaner" into the throttle valve, and then carefully scrub it with a polyester rag (please note that cotton rag is absolutely not allowed) or a high-spin "non-woven fabric". Deep in the throttle, you can clip a rag and scrub it carefully after cleaning. (Under normal circumstances, there will be some "carburetor cleaner" left in the intake manifold, so it usually takes 3~5 seconds to ignite the engine).

If there is carbon deposit on the accelerator, you should go to a professional institution or 4s shop to clean it. Cleaning the throttle carbon deposit is very simple and takes less time.

Throttle is called the throat of the engine, which controls the amount of air entering the engine. After we step on the accelerator pedal, we actually do not directly control the fuel injection quantity, but directly control the throttle opening. After stepping on the accelerator pedal, the throttle opening will become larger, and the amount of air entering the engine will increase, so that ecu will command the fuel injection system to increase the fuel injection quantity and increase the engine speed.

It is normal for the throttle to produce carbon deposit after long-term use. Just clean it up After cleaning up the carbon deposit in the accelerator, riders must reconfigure their computers, otherwise the fuel consumption of the car will increase in a short time.

If you don't match the computer, the fuel consumption of the engine will only increase for a while, and it will return to normal after a while, because ecu has strong learning ability.