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cel check engine soon

  1. How do you reset a CEL (Check engine soon) light?

    General E46 Forum
    I know you can reset the CEL with a Peak Scanner but I don't have one right now. I've searched too but all I can find is how to reset the oil service check. Autozone would read it bt they won't reset it, at least in Oregon? Is there a way to do it? A sequence, shorting a couple of pins or...