jjhamlett

I'm helping a guy from work on a 2008 RCSB GMC 1500 4x4 5.3 flex. He's spent a small fortune on this truck at a place that basically just threw parts at it. When I connected it to the Encore and used the id feature, it came back as a Cadillac CTS 3.2. But the VIN is correct for the truck. when I run a full scan it comes back with 80+ codes, some of which are from a Cadillac like rear speed sensors. Any ideas? I don't want to throw parts at it but Im at a loss. Thanks for any help