After some help guys. Tried flashing the 12587603 os to a p59 pcm so I can use the xdf file available for this os. Problem is even after removing vats from the bin file, engine will crank but not start in a no spark situation. Flash the pcm back to the original 12592433 os and it's fine. Wondering what I may be missing that's preventing the start. Have tried a couple of different bins with the same os but no difference. I'm guessing it might be something in the settings I'm missing but at a loss what to check next. Cheers.