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The check engine light came on and it was the code P219a which is the Fuel Trim Cylinder Balance Bank1. I have a 2010 chevy silverado was wondering if you had any videos on how to fix the problem? Thank you

not yet, but often that's a fuel injector problem, try this cleaning video first https://www.youtube.com/watch?v=bKGI9N_yWd0

Thank you