Why is the knight's frustration so serious?

Why is the knight's frustration so serious? Why is the knight's frustration so serious? The failure of engine oil system, more carbon deposits on throttle, fuel injector and air intake, and the failure of battery valve of carbon canister are all the reasons that led to Cavalier's frustration. The following are the specific reasons for Cavalier's serious frustration: 1, oil system failure:, oil can be fully lubricated, and vibration can be reduced to improve the smoothness of engine operation. If the engine oil is insufficient for a long time and the power is insufficient, the fuel consumption will increase. In the worst case, the piston hits its door, causing mechanical damage to the relevant connector. In addition, the failure of gasoline pump and the blockage of fuel filter will also lead to the decrease of engine power. 2. Throttle, fuel injector and air inlet have more carbon deposits. There are many failures caused by carbon deposition, and some vehicles will feel frustrated, which is also related to carbon deposition. It is recommended to pay attention to cleaning up carbon deposits at ordinary times. 3. Failure of the battery valve of the carbon canister: The failure of the solenoid valve of the carbon canister is mainly reflected in air leakage, solenoid valve line closing, etc. Because the solenoid valve can't be closed, it is in a normally open state, and the mixture will be too rich, so it is likely that it will be difficult to start the car when it starts. Most importantly, the car may also have idling jitter and frustration symptoms when refueling the door. @20 19