What if lexus es350 doesn't generate electricity at idle speed?

The reasons why lexus ES350 does not generate electricity at idle speed: 1, the spark plug is not working well, the vacuum tube leaks, the high-voltage line leaks, the PCV valve is blocked, the throttle position sensor fails, the stepper motor fails, the idle control valve fails, the throttle opening is abnormal or the air intake system leaks; 2. When the idle speed is unstable, the engine will shake and rotate unevenly, which may be caused by the blockage of idle air hole, poor action of idle device, weak spark of spark plug in individual cylinders, lax sealing of individual valves, air leakage in intake manifold, early or late ignition, improper idle speed adjustment, etc. 3. The idle speed of the engine is unstable, so the idle speed must be adjusted first. If the problem cannot be solved after idle speed adjustment, it is necessary to check whether the idle metering hole and idle air metering hole are blocked. If it is blocked, it can be cleaned with gasoline or acetone and blown with compressed air; If it is not blocked, it is necessary to stabilize the engine speed at a certain speed and check whether there is air leakage in the middle and lower parts of the intake manifold or carburetor. If air leakage occurs, it can be solved by tightening screws or adding/reducing gaskets. At the same time, if the idle speed is unstable and the engine power decreases, it is necessary to further check the working condition of the spark plug, the sealing performance of the valve and whether the ignition time is correct, and make necessary inspections and adjustments.