I have a 03 2500 HD with the 6.0/80e. I just put a little 75hp wet shot on it but I cant get the truck to go into PE mode and to make it not pull fuel at WOT on the bottle. The factory tune has PE mode set to come on 60 sec after it hits 5500 RPM so it will never come on but I set that to come on 0 sec after 1000 rpm at WOT. As I'm scanning the commanded AFR never changes any other car that I've tuned when it goes into PE mode the commanded AFR will drop down and will fallow the PE EQ ratio via RPM. I also have it set to disable STFT when in open loop and it does not do that. Ill post the file that I have in the truck now as well as a log file. The log file is huge I did alot of driving around and did a short nitrous pull at the end and you can see the STFT go to -17% and can see where the IDC drops way down to try to lean the motor out.