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Originally Posted by BLU BY U
thats why you reset the ecu before warranty work.
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Originally Posted by Jrfish007
There is no hard rive in the ECU of your car, it has no way of storing mass amounts of info. WHta little info is stored is also stored in RAM memory, so restting your ECU, resets the memory, if you're worried about that. But without a hard drive, they are not going to be able to record much, maybe a few of these "flagged" things, but that's about it.
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Not necessarily.
Data can be stored in Flash which is non-volatile (will store info when powered down).
And the 8th gen civic *may* have flash for persistent storage of info. I don't know and I doubt anyone here knows that for a fact unless they have the actual schematic. Even identifying a flash chip on the schematic may not mean that it is used to store the data mentioned in this post. It may just hold the actual ecu program (brains).
So all we can do is assume.