hi having intermitent managment light loss of power bad idle ,tryed the usual clean throttle body,and idle air valve ,but still persists.whith ignition on but car not running idle air valve has a loud buzz ,never noticed before is this normal .pull off the plug push back on and restart engine managment light out restart later could be on or off .any ideas??

kcimkcim, June 2012

thanks for your input fred

kcimkcim, June 2012

Cleaning the idle air valve doesn't always work, you might be best to try a new or known good replacement.

fred, June 2012