hello, im a proud owner of a 09 max.
Car runs great. except when car is fully warm, rpm drop around 650.
I want to set it to 750 or 800RPM at warm idle.
I tried on moving the throttle body little screw, but it had not much of effect.
thanks for your help.

 

Move the throttle screw back to where it was. That does nothing on cars made after 96 or so.
The idle is fine @ 650-700 why mess with it?

 

Idle is controlled by the computer, you can't adjust it.

 

You need to move it back where it was set or the ECM will always try to correct it and you will burn your computer out .

 

Lol

 

This. You can change it with a tune but your RPM idle is normal!