http://www.contour.org/forums/ultimatebb.php?ubb=get_topic;f=3;t=007324
This was the problem that I have been having, so PRO-M told Muscle Motors to have me turn meter from it's 12 o'clock position to 3 and if I still get a CEL then I should keep moving the PRO-M at small increments back to 12 to see if it will go off. I guess somehow that may trick the airflow, so my car will not run lean. If that doesn't work then I will eventually have to send it back. Jack at uscle Motors said that he knows a place with around 150 faulty ones, so i can only imagine when I would see mine fixed. Has anyone else had this problem with their PRO-M's where they had to move the thing in order to keep it from getting a CEL? I didn't get that many responses in the Problems forum, so I am posting it here because it does have to do with performance parts.

Any help/info is appreciated!!