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  1. 2013-2018 General Discussion
    help! I have a 2015 2500 6.7. I recently bought a ez LYNK auto agent 2.0 along with a egr delete and pipes. I went to install the auto agent and threw on a quick 75hp tune just to test it out. I have code U1412 that will not go away! I tried re installing and nothing. However the first time I...