ECU Flashing?
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CF Junior Member
Joined: Jan 2009
Posts: 49
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From: West Palm Beach, FL
ECU Flashing?
Does anyone know how to find out if your ECU has been flashed? This truck ain't slow, and I want to know for sure if someone upgraded it before I got it. Thanks!
Administrator
Joined: Apr 2008
Posts: 7,573
Likes: 47
From: Austin, Texas
I don't know if this will tell you anything other then manufacture info
http://tis2web.service.gm.com/tis2web
http://tis2web.service.gm.com/tis2web
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