[scarceller]

It is very possible that when you adjusted the linkage you may have done something that is not allowing the throttle body to fully close and thus the idle micro switch is no longer closing because the linkage is no longer coming in contact with it.

I would check that the throttle body plate is fully closing, a simple test is to disconnect the linkage from the throttle body and see if this allows the body to close further than it did with the linkage connected.

Do NOT start adjusting the idle screw without first disabling the idle speed control motor! To disable the ISC you need to jumper B to C pins on the plug at the left side of engine bay.

Check other threads for procedure for idle adjustment.