Thread: So who has stored their Z
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Old 11-05-2011, 11:58 AM   #36 (permalink)
Red__Zed
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Quote:
Originally Posted by GaleForce View Post
You will not lose your Uprev tune if you disconnect your battery. The stock ECU file/tune is replaced when you get an Uprev with a new tuned "ROM" file.

To recap, the ECU doesn't store the Uprev tune and the stock tune, it's one or the other. Replacing/disconnecting the battery will not revert the ECU back to stock.
this is correct.
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