Post
by josedebardi » Thu Oct 01, 2015 10:26 am
TD1 isn't only triggered automatically by the head office noticing an ECU has been tampered with (that is to say the flag is not int he ECU it's stored against the cars record's in Germany if they see the code has been changed/re-flashed). If Audi believe you have tampered with the car in any way, they will manually trigger a TD1 flag on the system.
That said, putting a tuning box on will not necessarily trigger a TD1 flag as the ECU thinks it's still producing normal power. So long as you remove the box without any trace before it goes to the stealers they will be none the wiser. Problem with some of the tuning boxes is they require the ECU to be removed from it's tamperproof housing to plug it inline with the box for sensor intercept - ergo they will see the tamperproof housing has been opened (note this is not opening the ECU, just the clamp that holds it in the car).
If you want to get away with it you need a tuning box that plugs inline with the sensors, not the ECU, such as the DTUK offering, it intercepts 3 sensors at the sensor end of the loom.
Having said that, if you want to be sure not to lose your warranty, DON'T TUNE! There is always a risk with any option. If Audi read a forum thread with you saying it's on the car they will use that against you should you be trying to claim a new gearbox or prop shaft... (and yes, they do read these forums!).
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