Computer Code ?'s

Tim2002GT

Founding Member
Apr 10, 2002
635
4
29
Tulsa, Oklahoma
I recently ordered an XCal2 programmer for my car. In the process, you have to give them your computer code and a few other pieces of information. What I was wondering is this...Why are there multiple computer codes for the same make and model cars? Do they all have identical factory tunes?
 
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