I have p2074 with GH.
The only tune to clear it was p i p, because they turned it off.
I wish this would be fixed... remote start will not work when the CEL is lit.
it IS fixed . email again .
Well today I reloaded the truck back to stock and then reloaded the GH street tune. I don't have the cel on yet but I am still throwing the p2073 and p2074 codes.
Did you email Mike?