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  1. Error code P0404 what is the EGR Valve?

    Matiz
    Hi, my 2007 Matiz has the engine warning light on. I hooked up an OBD scanner and it found fault P0404. I know this is regarding the EGR Valve. I researched and it is advised to clean it out so I YouTube'd it. It shows a massive part being cleaned. I looked to replace the part and it is a tiny...
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