Originally Posted by rallyracersti
how much longer is everyone going to comment on this issue,read each cobb post carefully.its stated several times that subaru can't detect a reflash. no matter how many ways you ask it,the answer is still the same.
Actually, Cobb's statement is the following:
Originally Posted by Cobb Tuning
There's over 250,000 lines of code in a modern Subaru ECU, so it is difficult to say anything definitively. We suspect that there may be a flash counter of sorts in most 08+ Subarus as we've found ROMs submitted from different cars of the same model/year/etc. (and same ROM version) where a few bytes are different (in the past, there would not be any difference). We haven't spent any time investigated this as even if it is a flash counter, it would be irrelevant as it is stored in the ROM and the AccessPORT v2 backs up the original ROM when you marry and flashes that back on when you unmarry. I also have not heard about any dealer function relating to a flash counter. Regardless, it is not an issue with our product.
Again, it is difficult to say anything with certainty regarding a current/future flash counter especially when you are dealing with the later CAN vehicles. You would literally have to purchase every new Subaru every year and tear it apart spending hundred of hours reverse engineering every module in the car. Subaru could be very sneaky in implementing this type of functionality if they wanted to.
You can be sure that if Subaru did implement a flash counter and a dealer denied someone's warranty based on it, you would hear about it very quickly (especially on Nasioc). To date that has never happened. We would also argue that our off-the-shelf maps are safer in the later model Subarus where the OEM tune holds the car in closed loop well into boost.
This is far from them saying that the flash cannot be detected. Is it a big deal to me? No. Do i think that a stage 1 flash would hurt my car? No. Am i going to worry about it? No.
I would say that this could be talked about forever as long as it stays in this thread and is constructive...possibly even stickied. This is great information, from the source, and i appreciate that they took the time to answer our questions and not just give generic replies.
The only detriment to this thread is when people come in and say "Geez, this has been talked about before" or "The dealer cannot see you were flashed to a different software" or similar. It junks up an otherwise informative thread and has the ability to cause an argument.
Again, thank you to Cobb for the thorough answers.