What is the reason for the intermittent jitter of Cruze idle speed?

What is the reason for the intermittent jitter of Cruze idle speed? What is the reason for the intermittent jitter of Cruze idle speed? In this case, it is necessary to first confirm whether the refrigeration function of the air conditioner is turned on. If so, check whether the compressor clutch is faulty. If the air conditioner is not turned on, it may be caused by a bad engine cylinder, so riders need to check the ignition system. Cruze is a compact car owned by Chevrolet. This car is equipped with two engines, one is 1.5 liter naturally aspirated engine and the other is 1. The following is the specific solution to Cruze's idling jitter: 1, and the engine has serious carbon deposition. The most common cause of idle jitter is excessive carbon deposition in throttle or injector. When there is too much carbon deposit in the engine, the gasoline sprayed by the fuel nozzle will be absorbed by the carbon deposit during cold start, which leads to too thin mixture and difficult start. In this case, it is easy to hit the car only if the gasoline absorbed by carbon deposits reaches saturation. After landing, the gasoline adsorbed on the carbon deposit will be sucked into the cylinder by the engine and burned, and the mixture will become thicker. When the mixture is thin and thick, it will cause idling jitter after cold start. The lower the air temperature, the greater the amount of oil required for cold start, and the greater the influence of carbon deposition on cold start. The solution is to clean up the carbon deposit on the throttle and the fuel nozzle. 2. The ignition system does not work well, and the ignition condition of the spark plug is not good, which will also lead to engine idling jitter. The solution is to check whether there is a fault in the ignition system and whether there is too much carbon deposit in the spark plug. If yes, replace the spark plug in time. 3. The oil pressure is unstable. If the engine carbon deposit has been cleaned, the throttle has been cleaned, or the spark plug has been replaced, there is still the problem of idle jitter. It is recommended to go to 4S shop to check whether the fuel supply pressure and intake pressure sensors are normal. If the oil supply pressure of the oil pump is abnormal or the value of the intake pressure sensor is wrong, it will also cause the problem of idle jitter. The solution is to check the above components and replace them if necessary. @20 19