Gday bill. Just an update. The tune was indeed locked, I followed the guide and coupled with the info you gave me, all went well. Loaded stock file then made the necessary changes and hit the key. Fired up. One odd thing that did happen though was after one of the flashes I did I found a whole heap of parameters had changed (not of my doing) as a result the car went from running perfectly before the flash to running poorly, going into limp mode and cutting the throttle off. I ended up having to go through everything and comparing it to the stock file to change it all back. Most of it was to do with idle parameters. Things like idle in neutral had changes to “0” instead of 600rpm. Found it quite odd.
anyways, crisis’ everted and all is well.
Thanks again mate.
cheers Chop.