Originally Posted by enoxard
subaru can not detect if an ECU has been flashed and then reverted back.. However, doing this resets all the counters - similar to a disconnected battery and subsequently drained capacitors.
Its the same as if you reinstalled the OS on your computer.. You cant tell what was there before, but astute observers can identify a fresh install / restore.
The multiple techs I've spoken too think otherwise.
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