Will the loose throttle line make the engine shake at idle speed?

The main reasons for automobile engine jitter, unstable idle speed, failure to refuel, failure to get a taxi and failure to start the engine are as follows:

1, automobile battery voltage is low; Specific detection method: test the battery voltage with a voltage range of three meters. If it is lower than 10v, it is recommended to replace it. If it is around 1 1v, it is barely used; Be prepared to be replaced. 12v or more is ok, but other reasons should be found;

2. Check whether it is caused by carbon deposition; If driving about 20,000 km, check and clean the throttle;

3. Check, test and replace the spark plug;

4. Confirm the oil quality of the added gasoline;

5. Check the ignition switch;

6. Test and check the starter, gasoline pump, sensor and other related parts of the starting and oil supply system;

7. Don't start it immediately after being electrified again, wait for 30 seconds to 1 minute, and then ignite; See if it works;

In any of the above cases, please note that when you can't get a taxi at one time, you must call it again every 15-30 seconds to protect the battery from excessive power generation and prolong its service life.

If there is no fault in other parts, it means that the throttle valve is not thoroughly cleaned.