004 Mitsubishi outlander EGR wont reset
 

My 2004 Mitsubishi Outlander EGR does not reset. It hasnt passed the smog check because of that and its really frustrating! I've disconnected the battery. Ive driven it and reduced the speed like my mechanic told me to do and yet nothing. It always says EGR not ready when I take it back to the mechanic.what can I do? Can anyone plz help? I've replaced the old egr with a new one and still no luck and the check engine light isn't turned on. Any ideas?