How does Suzuki Qiyue improve the idle speed?

Turn the plug clockwise until it stops, and turn it counterclockwise for 3-3.5 turns. At this time, the position is almost the same. Load the idle motor and turn the key completely, that is, turn it to the ON position. At this time, the driving computer will automatically adjust the idle motor.

The preconditions for adjusting idle speed are: normal engine temperature, proper valve clearance, normal ignition system, good sealing of all pipelines, full throttle opening and tight throttle closing.

Related information introduction:

First, idling is easy to burn oil. When idling, the throttle opening is small, and the vacuum inside the intake manifold is high, so it is easy to suck oil and gas into the intake manifold, and part of it is deposited inside the intake manifold, forming substances similar to carbon deposition, or coking.

Long-term low speed or idling, especially turbocharged cars, will find a pool of oil in the intake manifold behind the throttle, but these oils will generally disappear after running at high speed.

Second, idling is easy to accumulate carbon. When idling, the mixture will generally be thick, so the mixture will be thick after a long time, which is easy to cause carbon deposition in the engine. The same is true of stop-and-go driving at low speed, such as "one foot on the accelerator and one foot on the brake". As soon as the accelerator is put on speed, it will brake again, and the engine will thicken for a while, and the fuel injection will be reduced for a while, which will also cause carbon deposition in the engine.