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Originally posted by longassname
I don't know what to tell you to convince you except that you should take into consideration that you are basing your conclusions on your personal assumptions while I am basing mine on an actual knowledge of the ECU software.
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So then exactly how long does it take to unlearn this behavior?
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The ECU takes longer to unlearn knock retard than it takes to learn it in as part of a safety measure.
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The ECU clearly unlearned a very large portion of the knock retard very quickly, as it takes no less time to reach the red mailbox than it did before. I don't have a precision timing device, but it's doubtlessly within half a second. Why would it unlearn only 90-something percent of the retardation?
Logical extrapolations and real experience are a far cry from personal assumptions. It is hard to believe that Subaru would design an ECU that was so nearly incapable of unlearning a low performance map, especially one that is so competent and heavily dependent on it's knock sensors. Who has the ECU's source code?