It's designed to idle a little faster when the choke is on. If you think it's too high, get it checked at a dealership
Sounds like a choke problem/fast idle speed adjustment.
It doesn't have a band adjustment.
The idle speed is computer controlled. There is no adjustment. If the speed is too high or low, there is a sensor/actuator/wiring issue.
computer controlled
If it has EFI (Electronic Fuel Injection) there is no idle speed adjustment. The idle speed is adjusted electronically.
replace the ecm
V70 Petrol models The idle speed is ECU controlled and is non adjustable.
Computer controlled - not adjustable
you have trouble in the gear box.. there is no linkage adjustment
Engines with automatic chokes also usually have an automatic throttle which is supposed to run the engine at the best speed. Changing the choke would probably also require coming up with some way to change the throttle.
The idle speed motor controls the speed of the throttle body, There is an adjustment in the metal screew that the motor runs in and out of its housing.
how to turn the idle down. See if it's carburetor or efi. There is a speed adjustment for either using the idle speed screw (carb) or air bypass adjustment screw. If either has no effect, see below-