What if BMW m3 throttle monitoring fails?

The fault of BMW m3 accelerator is generally caused by carbon deposition. The throttle valve should be cleaned regularly, and the fault code should be reset by computer after cleaning. If the fault still exists after cleaning the throttle, it may be that the throttle regulator is faulty and needs to be replaced with a new regulator.

BMW m3 has eight gas throttles, which can be seen from both sides of the car. There are four throttles on the left and right, which are controlled by independent switches on both sides. When stepping on the throttle, the switch will open and close the throttle it controls. Throttle is a controllable valve used to control air to enter the engine, which can be said to be the "throat" of the engine. After the air enters the intake pipe through the throttle, it will mix with gasoline to form a combustible mixture, thus playing the role of combustion and work. Then, when we step on/release the accelerator pedal deeply, the system will control the opening of the throttle, thus determining the amount of air-fuel mixture (which will affect the engine power and fit).

Secondly, the throttle needs to be cleaned regularly. Generally speaking, it should be cleaned every 20,000 to 40,000 kilometers. If it is not cleaned for a long time, many impurities will be attached to it, which will affect the normal operation of the throttle. Not only will there be problems of unstable idle speed and power reduction, but even starting the engine is also a problem. However, the frequency of cleaning the throttle valve should not be as high as possible, otherwise it is easy to damage the special coating of the inner cavity, and we can deal with it according to the cycle.

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