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  1. Got Code P1418: Now What Do I Do?

    General E46 Forum
    MY Service Engine Soon Light came on this morning...went to Advance Auto Parts and they told me it was code P1418... P1418 = Secondary Air Injection Valve/Secondary Air Hose Clamped Questions: What the heck does this mean? How do I locate this part in my engine? How do I fix it and how easy...