Traditional Culture Encyclopedia - The 24 Solar Terms - What are the reasons for the unstable idle speed of the car?
What are the reasons for the unstable idle speed of the car?
Idle instability may be caused by the following points:
1, the spark plug has not been maintained for a long time, and there is too much dirt on the surface and it has not been replaced for 30,000 kilometers.
2. The fuel injector and throttle valve are not cleaned and maintained.
3. There is too much sludge in the engine, or too much carbon deposit when driving at low speed for a long time, and the oil and machine filter are not replaced in time.
4. The poor oil circuit may also cause unstable idle speed, and these problems will also occur when the famous brand gas station refuels for a long time or changes the gasoline filter irregularly.
5. It is also possible that there is something wrong with the driving computer, which leads to the wrong command.
According to the above inspection results and the troubleshooting guide in the maintenance manual, the diagnosis doctor makes a troubleshooting method suitable for the car. Troubleshooting methods generally include: cleaning the throttle and air intake, cleaning and checking the fuel injector, replacing electrical components, checking the fault point of the wiring harness, cleaning the grounding point, and repairing the mechanical structure of the engine.
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