Why is my S40 idling at 1000 RPM, and how can I bring it down?

Whose car idles at 1000 RPM when warming up, and has anyone fixed it?

3.0 Partner Edition. There's a noise near the engine at idle, but it disappears at 1000 RPM. Can any fellow car enthusiasts tell me what might be the cause?

What's the idle speed of your Mazda 3 when starting cold? Mine is over 1000 RPM.

Why does my 2008 imported Mazda 3 hatchback idle at 1200 RPM during cold starts, while it's usually at 1000 RPM? How can I fix this?

T8 idling at 1000 RPM, what's going on?

Why is my S40 idling at 1000 RPM, and how can I bring it down?

Has anyone experienced idle running at 1000 RPM when the temperature is 35 degrees, and then it returns to normal at 800 RPM when the temperature is 26 degrees? What's going on? Please help.

When I start the car, the idle speed is around 2000 RPM, but after a while, it drops to 1500 RPM. It takes quite a long time to go down to around 1000 RPM. Does anyone know what's going on?

Why is the idle speed around 600 to 700 RPM?

After refueling my Jetta VS7 at the gas station, the idle speed tends to be high, around 1000 RPM. Then, during driving, the speed fluctuates. After driving for about ten kilometers, the idle speed returns to normal. Alternatively, if I turn off the engine and restart it, the idle speed also normalizes. I've tested this each time I refuel, and it's always the same situation.