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    LB7: NOOB Help

    It seems like EFIlive is the most popular tuner on here, just based on members' signatures. Is this an issue that will cause damage, i.e. can I drive the truck while I sort this out?
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    LB7: NOOB Help

    I am brand new to the forum and to the dmax. I have a 206k mile early 04. It feels strong, good off the line and at speed. But it has a wicked Detroit sounding knock and dumps black smoke under power. The injectors were changed a the dealer in Phoenix at about 175k. I've looked through a ton of...
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    LB7: New From Southern AZ

    Dmaxman06- I am all the way down in Sierra Vista. Doesn't get much more southern Az
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    LB7: New From Southern AZ

    I am new here and new to the Duramax. Just picked up an early 04 with 206k on it. Been working on cars forever and used to fixe 8v92TAs in the Marines a long time ago. I look forward to gaining some good knowledge on the Dmax here.