Thanks guys, I am going to call up the dealer next week and see if they documented what they looked at specifically.

Does the fact that the engine light comes on with an O2 code only on VERY hot days mean anything? And could I be damaging anything running this way? The dealer said probably not.

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2007 Corvette Convertible Torch Red
1996 MBz SL500
2008 Harley Davidson Night Rod Special