Quote:
Originally Posted by jesperswe
Yeah something is not right here. I just have a really hard time beliveing that the first 100miles set somekind of "frozen" condition into the ECU. Could they please elaborate this?  |
I think there is some serious misunderstanding going on about "freezing permanent data in the ECU".......for many reasons..
First off, no one would want to freeze the first 100 miles for permanent parameters; because that is the break in period, and the test drive period.
Second, I would be very suspect that even if there were 'permanent calibrations' goings on in the ECU during the first 100 miles, a re-flash should wipe all the flash (data and memory) when performed. Subaru has zero incentive of not allowing the ECU to wake up fresh from a flash.
Here is what I think.....
Every OBDII car "tunes" itself as it drives, and as driving conditions change and drivers change, the ECU will typically react within 100 miles. Period, The end. If I let my idiot friend drive my car for 100 miles, the ECU will have adapted for best tuning during that time to match his driving style. After being in my possession for a few days, it will have adapted back to how I drive. If I get a flash/tune, it wakes up fresh. Just about every ECU in the world follows this behavior, and I doubt the ECU in the FRS has some special "permanent" learned behaviors it takes *only* during the first 100 miles of driving. That makes zero engineering sense. Even sounds stupid. Why wouldn't you want the ECU to continually adapt? Again, makes no sense.
I think this whole thing about "permanent behavior adaption in the first 100 miles" is a line that we are being fed, or a misunderstanding of what what originally said by Toyota/Subaru. What has been suggested here about the importance of the first 100 miles simply does not add up.