What are the symptoms of a broken car idle motor?

Sometimes the car can't catch fire, and sometimes it can be turned on, and it can drive normally after refueling. When the car turns neutral with the throttle, the dead fire or idle speed is high (more than 2,000), and it cannot return to the normal 900. You need to step on the accelerator and ignite to start.

The dashboard does not have any fault light, and when the fault is not read by the computer, it is generally the idle motor that is broken. Unstable idling, idle shaking, high engine speed, etc., are all caused by a broken idle motor. Because the idle motor is a small motor, the position of the motor is controlled by the current to achieve the control of the idle speed, because the idle motor is to control the flow of idle air, so the idle motor will be very easy to get dirty, and the dust carried into the engine air will affect the precise control of the idle motor, so too much dust into the idle motor will cause the idle motor to be stuck, the idle motor to be damaged, etc.

An idle motor is an element that controls the idling speed of a motor vehicle. When the engine is idling, it is called idling.

Its function is: when idling, according to the engine temperature and load size, change the cross-sectional area of the idle air channel, so that the engine has the best idle speed under different conditions.

The idle motor is mainly used to bear the idle speed of the car, and its purpose is to adjust the idle speed according to the engine load at the time of idling. The idle stepper motor is installed on the throttle valve body, which is used by the engine controller to control the engine idling, and when the engine speed deviates from the idle speed, it is adjusted by the throttle valve to control the amount of air entering the intake manifold and is mechanically operated by the accelerator pedal wire rope. The throttle body has a bypass air channel that provides air when the engine is idle (when the throttle is closed).

The pivot shaft of the auto idle motor extends into the bypass air duct through which the air flow is regulated, and the engine controller adjusts the engine idle speed by using the pivot shaft of the moving auto idle motor to enter and exit the bypass air duct according to the input signals from various sensors. When the ignition key is turned to the open position, the auto-idle motor starts working. This switch signal is fed into the ECU to sense whether the engine is idling.

At the same time, the real-time position of the motor is fed back to the ECU by the motor position sensor.

The idle motor mainly adjusts the air intake under idle conditions to ensure that the engine is kept to a minimum at idle speed, so as to reduce fuel consumption at idle conditions.

In general, it will not be damaged for no reason, and if it is damaged, you can only replace one.

If the idle motor of the car is broken, it will cause many failures when our engine is idling, such as the most common idle instability, and our idle shaking, high engine speed and so on.

These phenomena are caused by a broken idle motor.

The idle motor is a component of the engine idling, when the idle motor is abnormal, there will be a series of symptoms, so what will happen if the car idle motor is broken?

1. When the idle motor of the vehicle is broken, it will cause the vehicle to fail to start for some time. At the same time, during the unstable idle speed, it will also cause the vehicle to stall, and when the vehicle is idling, it will cause the engine speed to be unstable.

2. When the idle motor is faulty, it will also cause the vehicle to speed up very slowly during the acceleration period, and the power is obviously insufficient, which will have a certain impact on the driving safety of the vehicle.

The role of the idle motor is to bear the idle speed of the vehicle, and during the idle period of the vehicle, the idle speed can be adjusted according to the load of the engine. Generally, the idle motor is installed on the throttle valve body of the vehicle, and the stepper motor is used to adjust the area of the idle air hole, so as to effectively control the air intake volume in the engine intake pipe.

At the same time, when the intake pressure sensor senses the intake pressure, it will be transmitted to the computer, and then the computer will judge the intake volume, and then go to get the required fuel injection amount to control the engine idle power.

If the idle motor is broken, it will cause the idle speed to fluctuate high and low, idle, stall, slow acceleration, and engine shake. Idle motors are mainly used to withstand the idle speed of a car, and their purpose is to adjust the idle speed according to the engine load while idling. The idle motor is mounted on the throttle body and is used by the engine controller to control the engine's idle speed.

When the engine speed deviates from the idle speed, it is adjusted by the throttle valve to control the amount of air entering the intake manifold, which is mechanically operated by the accelerator pedal wire rope.

The throttle body has a bypass air channel that provides empty air when the engine is idle (when the throttle is closed). The pivot shaft of the automatic idle motor extends into the bypass air duct, and the air flow is adjusted through the bypass air duct, and the engine controller regulates the engine idle speed by moving the pivot shaft of the automatic idle motor into and out of the bypass air duct according to the input signals of various transmission sensors. When the ignition key is turned to the ON position, the auto idle motor starts working.

This switch signal is fed into the electronic control unit to detect if the engine is idling. At the same time, the instantaneous position of the motor is fed back to the electronic control unit by the motor position sensor.

The idle motor is definitely related to the idle speed. If it is broken, it may have a high idle speed, and a low idle speed may ignite the fire and turn off the flame. There is also the idle speed is high or low, that is, the idle bend closed speed tour. That's all.

If the speed motor is broken, it may idle high or low, and it is possible to idle the car, or it is possible that the buried mold crack is too low and stalled when idling, and it may be that when accelerating, the speed can not be moved.

The idle motor is an element that controls the idle speed of the motor vehicle, and is mainly used to bear the idle speed of the car. Its purpose is to adjust the idle speed according to the engine load at idle. The idle stepper motor is mounted on the throttle valve body, which is used by the engine controller to control the engine idling, and when the engine speed deviates from the idle speed, it is regulated by the throttle valve to control the amount of air entering the intake manifold and is mechanically operated by the wire rope of the accelerator pedal.