Why does the new spark plug need to be run-in?

The function of the spark plug of the car is to ignite the mixed gas, so that the engine can start to work. The importance is equivalent to the "heart" of the engine. Because the spark plug wears out after a period of time, it needs to be replaced. Some owners change it.discoverIt has become fuel-consuming. I want to know the reasons for the fuel consumption after replacing the new spark plug. Does the new spark plug need to be run-in? Let's take a look below.

Reasons for fuel consumption after replacing a new spark plug

After replacing the new spark plug, the car owner felt the fuel consumption increased, because the current engine is controlled by the computer to control the fuel injection volume and ignition, due to the computer control unitYuanIt is adapted to the working state of the old spark plug, so after the new spark plug is replaced, the computer will adjust according to the new spark plug, thus giving the car owner a feeling of increased fuel consumption.

In addition, the increase in fuel consumption after replacing the spark plug may also be caused by the wrong type of spark plug replaced by the owner. The gap size of the spark plug is different, which makes the ignitionsuccessThe rate is reduced, which leads to an increase in fuel consumption. Or the spark plug is not tightened when it is replaced, the high-pressure gas in the cylinder leaks, and the pressure decreases, which may cause unstable idling.

Does the new spark plug need to be run-in?

Generally, if the car owner replaces the spark plug of the same model from the original factory, there is no need for a running-in period, and the computer will automatically adapt to match the new spark plug. However, if the car owner replaces a spark plug of a different material, it will take a period of running-in, for example, to replace an iridium spark plug with a platinum spark plug, then the computer needs to learn to adapt and adjust the parameters.