standupjskiguy
Member
- Joined
- Mar 18, 2009
It's proper name is minimum air adjustment screw according to turbo tweak.When you adjust the idle adjustment screw
You are supposed to adjust it for IAC counts of 10-40. If after doing this, if the idle is high, I believe it indicates a vacuum leak.
With the proper IAC count, the ECM is suppose to control the idle at the proper level.