What is the solution to the unstable idle speed of FAW Pentium B70 engine?

Idle speed is unstable, one is the throttle, which is a big reason. It is necessary to readjust or clean the throttle valve and replace it with a new throttle valve assembly if necessary. The second is the driving computer. The error code of the driving computer will also lead to unstable idle speed, so go to 4S to upgrade the computer or refresh the computer. The third is the sensor, which is relatively simple. Unplug the sensor, plug it in again, and see what happens. Generally speaking, the probability of sensor failure is very low. When symptoms appear, go to the repair shop quickly, so that workers can easily find the problem and the reason.