How is the car throttle always dirty?

Oil and gasoline are also found in the crankcase and other parts of the engine.

Oil and gas, fine dust not filtered by air filter and carbon produced by incomplete combustion combine and adhere to the inner surface to form carbon deposit.

After the throttle body is dirty, it has a lot of influence. According to the design principles of different vehicles, the comprehensive consequences are mainly as follows:

1. Affecting vehicle start: unable to start or difficult to start.

2. Abnormal idle speed: unstable idle speed, driving (too high or too low idle speed), etc.

3. Fuel economy is affected: fuel consumption may increase.

4. Affect other parameter values: for example, the throttle opening and stepping motor steps collected by ECU will be affected, resulting in errors, such as ignition advance, injection timing and injection quantity. In this way, the engine has many shortcomings, such as poor working conditions, rising fuel consumption and engine jitter.

5. Unable to accelerate and speed up: for example, the throttle is stuck.

6. The discharge is not up to standard.

7. Abnormal phenomena, such as bumping and firing.

8. Obstruction during refueling: For example, the throttle body is stuck and the idle valve cannot turn.

9. Other anomalies: The possibility of other faults is not ruled out, and it should be determined according to environmental emission standards (European standards) and vehicle models.

When the throttle is found to be too dirty or abnormal, it is suggested to send it to after-sales service for maintenance and troubleshooting in time to restore the original performance of the vehicle.