Yes, There is a screw on the carburetor or throttle-body that controls idle speed.
When the idle goes rough, you must idle the plugs. Else the car plugs roughly.
Check for vac. leaks, possibly the vac hose on the cruise switch at the brake pedal.
Rephrase, Idle air control, idle circuit carburetor or
The car was staying idle.
no .... no way.
Check your idle, your idle might be too low so it is stalling your car.
When the TPS sensor is disconnected from the car in idle, there would be delayed acceleration.
I let my car idle for 10 minutes.
No, that has nothing to do with idle speed.
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That is about your average idle RPM. It depends on what car you have and the age of your car. If it bothers you, i'd recommend going to a place that fixes cars.
Check the idle, crankshaft and camshaft sensors.