make a new gasket with no holes for the idle air bypass and you're good to go. $1 mod. it will set off the cel, but you can set the idle with the screw to wherever you want it. where you set it, is where it runs, hot cold whatever. just my 2 cents.That screw is to stop the butterfly from sticking, not to control the idle. It can only properly control the idle if you have the computer idle control disabled, and you needed to control it manually.