What is the jitter of Nissan Teana engine?

Reasons for engine jitter of Nissan Teana: 1, serious carbon deposit in the engine, dirty throttle or excessive carbon deposit in the injector. When there is too much carbon deposit in the engine, the gasoline sprayed by the injector will be absorbed by a large amount of carbon deposit during cold start; 2. Engine cylinder missing: Engine cylinder missing mainly means that one or more cylinders of the engine are not working normally; 3. The engine combustible mixture is sometimes rare and sometimes rich, which leads to idle jitter after cold start. The lower the temperature, the more engine oil and carbon deposit are needed for cold start, which will affect the success of cold start. Teana is Nissan's flagship mid-to high-end luxury car. In terms of body size, its length, width and height are 4.868m, 1.830m and 1.490m respectively.