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Hey guys,

I bought the 4.6 3v control pack for the 2006 Mustang that I am building for racing. In the instruction is says multiple times that it says the 2005-2006 engine harness will not work and will need to buy the 2007-2009 engine harness. I've been searching around and can't find anything for the reason why. Does anyone know or have an idea on what the different is?
 

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I believe the language and probably the pinouts on the ecu are different. I know when I was buying a handheld tuner a decade ago that there were two different models. One for 05-06 and a different PN for the 2007+ one. Either way there is something different about them but I can't remember all of the details.
 
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