Chery tiggo 3 idling low engine jitter

Idle jitter is generally caused by carbon deposition in throttle and idle motor. Just clean the throttle and idle motor. It is also possible that the air filter is dirty, the high-voltage line is broken, the life of the spark plug, the abnormal water temperature, the blockage of the oil nozzle, carbon deposition, oil fouling and so on. Can cause engine jitter. Finally, this car itself has such a problem, that is, the engine is not well matched.