Recent content by hmmhunter

  1. H

    07' Flex Fuel Compatibility

    Thanks for the info! As far as tuning goes, could I just buy a new ECM that’s programmed for the 2009 with an L9H and plug that in or would it be a little more complicated?
  2. H

    07' Flex Fuel Compatibility

    Good to know, thanks! I was already looking to replace my motor in the next few months, if I find an L9H would it fit exactly the same or am I better off getting an L92 and just modifying it to take flex fuel?
  3. H

    07' Flex Fuel Compatibility

    Thanks for the help! If I do that, do I need to be concerned about the fuel line as well or are they ok for E85?
  4. H

    07' Flex Fuel Compatibility

    I agree, I just don’t understand why it has the flex fuel badge on the tailgate if that’s the case. Has anyone tried swapping in the L9H? Do they fit the same or would it cause problems?
  5. H

    07' Flex Fuel Compatibility

    Hello, I recently bought a 2007 Yukon XL Denali (6.2L Vortec) and am having some problems with it. It has the FlexFuel badge on the back, and so I've been using E85 but every time I do, it throws codes (lean fuel bank 1 and 2) and has a hard time starting. I figured it just wasn't registering...
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