I had my car at the dealer yesterday and they said that they coulod not read my computer and that it had been reprogrammed. I bought my car 2 years ago with about 48000 miles on it. I don't no any of the history of the z beforehand. How would i know if it had already been tuned?

 

If it was done by TS there should be a sticker on the actual ECU. However, after TS is done with it the Nissan dealership should still be able to read it with no problems.

 

ha - they're trying to pull a fast one on you...