I think that was s what happened to start it all GM, but he is claiming it is to stop people from sharing the map online.

The real bastard is you can't save that corrupted file and put it back in later, so you cant try another one without losing what you have now, I'd have a crack at it for you if you were keen but you would have no piece of mind on being able to go back, the tuning bloke would still have an uncorrupted copy though, ie the one he programmed in and pulled the pin on while it was saving to the VCI.

Maybe a "tuner" can explain why they corrupt the file. Some use this site!!

Mate I've always found it hard to understand exactly what you are trying to say, maybe it's a mental deficiency on my part but I just don't know, are you trying to tell me out of the goodness of their hearts, tuners that pull the plug on the VCI downloads are actually trying to protect some poor sap that thinks that particular calibration will be perfect for their bike that hasn't been tuned but has the same/similar parts? We been playing this game a long time robots, I know what I'm doing, like it or not.

i dont know either, maybe a tuner can tell us

I suspect there's probably some ego in locking tunes. Many tuners would probably think they know better than everyone else and don't want to give their "secrets" away (and in a few cases that would be correct). Others are probably insecure and scared that someone might re-tune their tune and realise how ordinary they actually are. Then there would be those who are worried someone else will fiddle with their tune, make it worse and hurt the engine then they cop the blame so they lock it to protect themselves.

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hi, yes the map writer got it spot on. pretty good for my bike. Little bit of pinging so i sent back and he adjusted it.