hi there my question is: when you are on N or Parking or whatever...but the car stop, and you move the power sterring, the rpms drop a little???

thanks for your help

 

 

Yes and No

When you turn your steering wheel your power steering system works to help move the wheels and tires. That in turn puts a load on the power steering pump, which is powered by your engine which also see this load. That can bring the RPM's down slightly. But, there is a control valve on the power steering system that senses the load and sends a signal to the IACV to compensate for that load so the RPM's don't drop.

If you turn the wheel back and forth while listening under the hood, you can here the control valve click on and off as it controls your engine speed. If that valve isn't working you will see the load bring your idle speed down very slightly.

Try cleaning your throttle body, that usually helps correct idle control problems.