Report "Code P2173 $7E8 generic Throttle Actuator Control System High Airflow Detected has been popping up and putting my 2012 Dodge Journey 2.4ltr. into limp mode until I clear the code. I have clean the dirty map sensor, removed and cleaned the throttle body butterfly air control valve and then checked the ERG valve, but code still comes back within a few minutes. Just not sure what part I need to replace. I should also note that I would clear the code and restart the vehicle after I worked on each part. I also changed spark plugs just as a precaution. Any ideas would be appreciated"