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  1. p1182, p1183 - Codes after Header isntall with sim. What to do? HELP!

    General E46 Forum
    so i did a complete header install, and simmed the post cats properly. That night i was driving on the highway and coasted in neutral after i exited (about 2 am completely empty road). My CEL light comes on, I am like :ben:. I chekc the codes and it seems the sim is ok since I get the fallowing...