Thanks. I've had a look at all the IPC related parameters in the compare file. These are the only 2 which came up with a search. These are all the ones different when I look under IPC category. Should i make all of them the same on my car? I found if i make auf2437 the same on my bf as the fg, the car wont start.    I had a look for the parameter you mentioned. I'm not sure which one it is. Would it be any of these?:   Cheers.