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Found the same operating system that had a 5.3/4l60e combo, segment swapped both and works great! My very first "tune" was a success!

Can you just turn the A/C on? Should kick the fan on as well, easy check.

Also, could I segment swap both the engine and transmission?

Maybe I misunderstood, but I thought you couldn't flash different operating systems onto computers? Or does it just have to be the same hardware (ie part number)? I'm new and have been reading a lot...

I've wanted HP tuners for quite some time, finally got a reason to purchase it. In my day job as a mechanic, we are swapping a drivetrain (2005 5.3 4l60) from a rolled vehicle into a good body with a...