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    Hey, I am replacing the cp3 on my duramax and I've pretty much winged it up to this point. I...

    Hey, I am replacing the cp3 on my duramax and I've pretty much winged it up to this point. I noticed that you've got a post with schematics that's pretty informative. There are some other links to gm's how to site, but when I try to open them it tells me I don't have access. Is there any way...