Hi Bill, I have a quick question for you. I have a 2006 6.0l that is running the VXCF9 strategy. As you know my mpg sucks and power is gone, but I have been able to get most of this back when I load Matt's spartain diesel tunes from his VXCF4 family on my SCT X3 programmer. When I run the VXCF4 im getting 5 mpg better than before, but I don't know if i'm putting my truck in danger because I'm still running the FICM at the VXCF9 setup that FORD put on it. Can I run my truck this way or do I need to roll back my FICM to your modified setup, and what is that exactly? I live in Idaho, so it's kind of cold here. My goal is to have good cold starts but get good mpg and power.
Thanks for you help..
Phil
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