Civic 1.8 What are the causes of engine intermittent jitter under automatic and idle conditions?

Civic 1.8 What are the causes of engine intermittent jitter under automatic and idle conditions? Civic 1.8 What are the causes of engine intermittent jitter under automatic and idle conditions? It has something to do with the fuel you use, the weather and whether your oil circuit is dirty or not. Generally speaking, jitter is a problem in the combustion chamber of oil circuit, such as large carbon deposit, substandard mixture, unclean oil circuit, clogged filter screen, long-term failure of oil pump to clean water clothes and so on. If you can't find the reason, add two engines to the fuel tank. This situation will disappear. I tried. If you don't turn on the air conditioner, you won't shake. It may be that the air conditioner takes away too much heat from the engine, and it is difficult to maintain the temperature at low idle speed. Thank you, your answer is very close! The engine is unstable at low temperature, so it is normal to have idle jitter. If the temperature is 40 degrees, it is not normal to still shake, so you need to check the throttle. The air conditioner heater is on, but the compressor is not on. It shouldn't shake! There are generally three situations: first, the water temperature is high or the air conditioner is turned on, and the radiator fan of the water tank vibrates when working; Second, there are diesel vehicles shaking around; Third, my engine is unstable or the engine foot is seriously aging. It's my pleasure to answer the rider's question. If you are satisfied, please accept it. @20 19