besides the idle control module went bad, there's another option worth to
try bringing the idle down..

- clean the ICV/Idle Control Valve

if no result do this

-- leave the ICV attached and connected
- unplug the connector
- shine a flashlight in the rear cavity to locate the very small allen screw
- use a #3 (?) allen key to turn the screw clock wise to lower the idle -
counter clockwise to rise the idle

if no result then either the ICV or the ICM went bad... or broken vacuum
hose/air leak on intake booth and the such