What is the reason for the high fuel consumption after replacing the spark plug?

The increase in fuel consumption after replacing the spark plug is not necessarily a fault. Engine ECU has a learning function, and it takes some time to learn and adapt again after replacing a new spark plug. During this time, it is normal for fuel consumption to increase. You can run for a while and see if the fuel consumption will drop. If the fuel consumption is still high after filling the fuel tank with a new spark plug, you should check it again.

Check the spark plug for problems:

1. Is the model of spark plug suitable? There are many kinds of spark plugs, some of which are not suitable. If the owner does not pay attention to the type of spark plug and uses an inappropriate spark plug, it may lead to an increase in fuel consumption. It may also be that the engine oil is added too much, which leads to an increase in engine running resistance, so it will increase fuel consumption;

2. It may be that the spark plug is tightened thoroughly. The spark plug needs to be connected to the bottom of the engine. If the spark plug is not completely tightened when replacing it, it is easy to cause poor contact of the spark plug. In this case, it is easy to cause insufficient engine ignition and gasoline combustion, increase fuel consumption, and may also lead to insufficient automobile power.

If there is nothing wrong with the spark plug, try to clean the throttle and oil circuit. Throttle carbon deposit and unclean oil circuit are the most common reasons for the increase of fuel consumption.

When replacing the spark plug, the owner must tell the staff to tighten the spark plug, not too tight, but not too loose. Spark plugs can generally be screwed to 20Nm. Too tight or too loose will increase fuel consumption.

When replacing the spark plug, the owner should pay attention to the model of the new spark plug and replace the spark plug correctly according to the requirements of the vehicle. Million car purchase subsidy