Curious. I have two 2004 vehicles Corvette, Avalanche. Both have ETC Electronic Throttle Control. I'd like to update PCM to EFILive custom OS Version 3, so I can use the {B3647} table. Both upgrade OS's don't contain {B3647} Is this because they are ETC vehicles? What criteria makes a vehicle able to use {B3647} table?

Thank you, Kevin