How to replace the throttle of a car and how to fix it?

Electronic throttle is an important part of automobile engine. It can accurately control the throttle opening, not only improve the fuel economy of vehicles, but also effectively reduce emissions. It is a common automobile control component now. In the long-term use of the car, some faults may occur in the electronic throttle. Therefore, it is necessary to master the troubleshooting methods of electronic throttle to ensure the normal use of electronic throttle. The following are the common faults and solutions of electronic throttle, hoping to provide some help to everyone.

Common fault 1: serious carbon deposition in throttle.

This situation is no stranger to car owners. When some car owners usually maintain in the store, mechanics often say that everyone has serious carbon deposition on the accelerator. When there is a large amount of carbon deposit on the throttle, it will affect the normal opening and exhaust of the throttle, leading to lighting failure, including engine jitter, which may also be related to carbon deposit on the throttle. When the engine of everyone's car shakes or suddenly loses power, they should go to the garage to check the carbon deposit. If there is carbon deposit in the throttle, the common cleaning method now is cleaning spray. After removing the throttle, clean it with cleaning spray. Install after cleaning, and the fault can be eliminated.

Common Fault 2: Poor contact of throttle sensor

After this happens, the vehicle exhaust will become unstable and sometimes even affect the ignition. In this case, we need to check whether the sensor line at the throttle position is in poor contact, including cracking or looseness, and we need to use an external meter to check whether the circuit voltage is normal. If there is a problem with the connection part of the sensor, the sensor line should be connected firmly in time, and the damaged line should be repaired in time to make it return to normal.

Common Fault 3: Throttle Pseudo Fault Code

If you cleaned the throttle recently, did the car have throttle trouble again? It may be a pseudo fault code. This may be because the ECU of the car failed after the electronic throttle was removed. Although the car was cleaned and the accelerator was reinstalled, the car failed to reset through the computer, so there will still be a fault code. If this problem occurs, you can use computer reset to solve the problem of pseudo-fault code.

Common fault 4: poor contact of throttle servo motor line.

The control of electronic throttle cannot be separated from servo motor. If the circuit contact of servo motor is poor, it will also lead to the appearance of throttle fault light. When everyone's car has a fault light, it needs a professional mechanic to systematically check the circuit of the servo motor, which usually takes a certain number of working hours.

Common fault 5: Throttle servo motor fault

You can check the servo motor with a multimeter to see if the motor functions normally. If the motor fails, the whole throttle assembly needs to be replaced, and the cost may be higher. In addition to the cost of accessories, there will be a certain working hours fee, and the prices of different brands are different.

Summary:

When the electronic throttle of an automobile needs to be repaired, the following faults usually occur:

1, serious carbon deposition on the throttle; 2. Poor contact of throttle sensor; 3. A pseudo fault code appears in the throttle; 4. The circuit of throttle servo motor has poor contact; 5, throttle servo motor failure.

The above are the common faults and solutions of automobile electronic throttle, which are not particularly complicated as a whole, but you need to have a corresponding understanding to deal with the problems calmly.