Originally Posted by Mike@N54Tuning.com
Interesting I read there were two flashes and Wedge told me there was only one. Anyway I'm pretty sure you need to disable the o2 biasing just like the JB4 guys do when running the BMS flash. That transfers control of the fueling over to the flash side instead of having the flash adding fuel and the piggy adding even more fuel on top of that.
I believe the 4 flashes are:
Pump gas fuel trim increase
50/50 E85, no flex fuel sensor
E85 flex fuel
I think what you are referring to is accomplished by changing all the AFR target cells to 50.
I called and they had me email them in a log, so I guess we will see if I get an answer.