Changhe Langdi engine idle swing, Changhe Langdi throttle how to reset

1。The most common cause of unstable idle jitter of automobile engine is the lack of cylinders, which means that some cylinders of four working cylinders or six working cylinders of an engine do not work or work poorly, which will lead to unstable engine power output, resulting in engine shaking; The easiest way to diagnose the lack of cylinder in the engine is the "broken cylinder method" diagnosis, the specific method is as follows, when the engine is running, use a wrench to disconnect the high-pressure oil pipe of a cylinder or break the plug, if the engine is obviously unstable and more shaky, it means that the cylinder is good, if the engine is running as usual before the cylinder is not broken, which means that the cylinder is not working; This is the simple "cylinder breaking method", simple and practical, but the operator needs a certain amount of maintenance experience, if there are conditions, you can use a special engine operation detection oscillometer detection, more intuitive and accurate; There are many factors for the specific reasons for the lack of cylinders in the engine, such as the blockage of the fuel injector of a cylinder, stuckness, poor atomization, high-pressure oil pipe breakage, too large or even broken intake and exhaust valve working clearance, and broken and stuck piston rings, resulting in strain and leakage of the cylinder or even cylinder barrel, which requires further diagnosis and maintenance; 2. The relatively rare reason for engine idle shake, the engine fixes the foot pad rotten, and the engine cannot be fixed and shakes, which is relatively rare, but the possibility also exists;

Hello, reason 1The engine has 2 more carbon depositsThe throttle is dirty.

The throttle opening reset method is as follows: 1. After cleaning, the computer data needs to be initialized, and the computer can record the new throttle opening data; 2. Initialize the maximum opening method of the throttle: insert the key and open the key to the second gear.

That is, all the warning lights are on, but the gear is not yet in the car, hold for 15 to 20 seconds, then press the accelerator to the end, keep the throttle open to the maximum, hold for 15 to 20 seconds, then close the key door, pull out the key, and wait for 20 to 30 seconds; 3. Initialize the minimum opening method of the throttle: insert the key first, open to the second gear, and then wait for 15 to 20 seconds, then close the key door directly, pull out the key, and wait for 20 to 30 seconds; 4. If it is not reset, the engine will be unstable at idle speed and the speed will be too high, and the situation will be even worse than before it is not cleaned.

1.The spark plug loses its ability to ignite.

2.The throttle valve is faulty. Both of these problems can cause engine shake and unstable speed.

3.Carbon deposits can cause insufficient combustion of gasoline and cause the engine to shake. The impact of engine carbon deposition on the car is quite large, first of all, to reduce the engine power, that is, to make the power output uneven and gradually decay, in other words, more and more powerless.

The second is to increase fuel consumption and increase your financial burden. The third is the difficulty of cold start, that is, the difficulty of ignition, it is not easy to get on the car, and finally the carbon deposit in the combustion chamber is strict, and a heavy one will also cause cylinder detonation, and there will be a sound of low-speed acceleration, which will cause damage to the piston and crankshaft, and cause high temperature of the engine, which will seriously affect the safety of the car. Then there is the excessive discharge, which not only fails the annual inspection and inspection, but also directly aggravates the harm of polluting the environment.

4.The load operation of the transmission will destroy the quality and friction characteristics of the transmission oil, increase the friction and wear, and the transmission noise will follow, and at the same time, the sludge (impurities or dirt) will also be generated inside the transmission (such as the valve body), resulting in the transmission stuttering, disgearing, impact, skidding, stalling, abnormal noise, delay, high temperature, oil leakage, etc. (Audi and other high-end models will call the police and enter the transmission protection mode) If it is not solved in time, the transmission will be scrapped.

Did you step on the clutch and turn off the engine after a while?

Check the ignition system and oil circuits, and your personal opinion will be appreciated.

Hello, there are several possibilities for a bad start in the morning.

1.There is too much carbon deposition on the throttle inlet valve, and a thick mixture is required for starting in the morning, and the carbon deposition will absorb a large amount of gasoline vapor, and the carbon deposition needs to be cleaned.

2.There may be a problem with the oil pump or the oil pressure regulator.

3.Check the water temperature sensor and its wiring, and the cold start computer controls the fuel injection according to the water temperature sensor.

I hope mine can help you, I wish you a happy car! [Car questions, ask the master of car Qibi. 4S shop professional technician, 10 minutes to solve. Quietly].

The morning belongs to the cold car start, the factors that affect the start are Sakura Min Sun, the gasoline pressure is too low, the water temperature sensor, the throttle is dirty, the ignition energy is too weak, and the engine has too much carbon. [Car questions, ask the car master.] 4S shop professional technician, 10 minutes to solve. 】

Hello, the cold car is not good to start, it is recommended to check the oil pressure, change the gasoline filter element, change the water temperature sensor hole, I hope it can help you, thank you, [car questions, ask the car master. The 4S shop is as professional as a liquid technician, and it can be solved in 10 minutes. 】

Hello, it is a little difficult to start the cold machine in the morning.

Cold starts are like this, normal.