Toyota Crown 133 turns on the air conditioner and idles at high speed.

Does the subject want to ask "What is the reason for the high idle speed of Toyota Crown 133 air conditioner"?

1, the throttle is too dirty. Due to the frequent starting of vehicles, short-distance driving, low temperature and low speed, and poor fuel combustion quality, there will be too much carbon deposit and dirt on the throttle and the surrounding air intake, and the cross-sectional area of the air passage will change, which will make the control unit unable to accurately control the idle intake, resulting in the mixture being too rich or too thin, which will lead to idle fluctuation caused by abnormal combustion.

2. Leakage of intake manifold and valve. When the air, gasoline vapor and combustion waste gas that should not enter the intake manifold are too rich or too thin, the engine will burn abnormally and idle speed will fluctuate.

3. Idle air actuator parts are faulty. Idle air actuator failure leads to inaccurate idle air control. Common causes are: the throttle motor is stuck or damaged.

4. The air quality is not allowed. The air flow meter is too dirty or its line fault leads to inaccurate air intake control at idle speed and abnormal combustion of the engine, which is the indirect cause of unstable idle speed.