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  1. rglatz1911

    GX470 2UZ-FE Secondary Air Injection System Replacement

    I’m currently throwing an error code (P1442) for a stuck valve in the secondary air injection system on my 05 GX470. From my research, this seems to be a well documented issue with the 4.7s. I’ve found several extremely helpful videos on YouTube that not only walk through the steps of...