How does BMW x3 throttle match?

There are three commonly used methods for throttle matching: manual matching, power-off matching and diagnostic instrument matching. Generally, after replacing a new throttle or disassembling and cleaning, it must be zeroed. The matching process is a process in which the computer learns to recognize the position and angle of the throttle again.

1. Manual matching mode: the throttle of mechanical cable is matched by manual reset mode. When the telephone switch is switched on and off several times continuously, the vehicle computer will delete the original throttle memory and store new throttle data. Confirm that the vehicle can start and run normally.

2. Power-off matching method: After replacing the throttle, disconnect the negative electrode of the battery for a few minutes, and the vehicle will go to sleep. During this process, the original memory of the on-board computer will be restored to the factory settings. However, this method is only applicable to resistance vehicles, which can run normally when driving.

3. Diagnostic instrument matching method: use a special diagnostic instrument to read the data, then follow the steps to clear the adaptive value, clear the fault code, start the vehicle, and the vehicle runs normally, indicating that the matching is successful.

Clean the throttle and remove the carbon deposit on the throttle. Failure to re-match will lead to high idle speed. Generally, the idle speed of the engine is around 800, but if the carbon deposit is removed without matching the throttle, the idle speed can reach 1500 r/min or even higher, which wastes gasoline.