[NikkelsA5]

I installed a high flow cat on my 2011 A5. Was downloading Integrated Engineering stage 2 tune when laptop started updating when the rewrite was at 64%. Tried to run again and kept getting error messages. Now car won't start. Does anyone have any advice? Would much appreciate it. Thanks

 

[The_jargen]

Sounds like your ECU is bricked. Send it back to the supplier of your tune to unbrick it.

 

[jnrdavo]

You could also try disconnecting the battery and leving off for an hour or so to drain all power...then connect again and see if it works. Not sure if the ecu has a backup flash it will revert to.

Sent from my SM-G985F using Tapatalk

 

[NikkelsA5]

Thanks. I was about to disconnect the ecu and said fuck ut let me try 1 more time...it took the tune and all is good. Stage 2 runs great