If you have a GD and that this is 32 bit then Merril has said that he just about has the flex fuel setup ready for migration to the MerpMod patch. He has been delayed as some prat crashed into his test car.

Just to clarify, Carberry and MerpMod are just patch programs that modify certain parts of the factory ecu. If ASG have used verso tune to modify the engine parameters on the factory ecu then these patches will just change more lines of code. Essentially the same as ecutek except that excited then adds a locking line to stop non ecutek programs from being able to read/change.

Worth looking at still.

Another thing that is also in test in the Opensource/Romraider space is virtual flex. This is where they can work out live alcohol content without needing to run a flex sensor.

I hope these comments and input are helpful. I have been watching this stuff for over two years.