I just got this same error code today when attempting to load the new tune. Got a call into Superchips right now awaiting a return call. I recently had the vehicle flashed to allow VIM and I bet that has something to do with the G-81 error.
2009.1 Liquid Red GT Premium/Sport w/Sunroof
Front Plate Delete, Bass mod, Partial Debadge, Cargo Liner & Weathertech Digitalfit floor mats,
Pat G Tune, GTPprix's Atari Gauge Mod & OEM Bluetooth & VIM, Leather sliding center console cover, Pace Performance Jack Kit and full size spare, Rotofab CAI and rad cover, Mobil 1 Oil cap, GXP axlebacks.
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