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  1. Question: Lly intercooler manifold temp sensor can’t find??

    Duramax Second Generation: 2004.5-2005 (LLY)
    I have a 2005 lly duramax. I see on top of the y bridge that there is a Bolt with lock tight replacing the temp sensor so I have a check engine code for it. Any idea where to look for to find the connector that plugs into the sponsor which is a grey plug because it’s not on top of the motor or...