i have a 2003 CTS that seems to always have the same issue occur. The Throttle Body wont seem to remain "Learned" . The car throws an error code P2176C every 2-3 months. I have used manual methods in the past but yet still comes back. Is there a way to have a manual way to "Re-Learn" the throttle body once and for good?? Any help would be appreciated at this point.
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