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Hey, sorry if this was ever answered before. But does anyone know if the OBDII Ecu will adapt to a tune and progressively try to change back to the stock map? Im tuning with an Aem Fic and i plan on keeping all my o2 sensors and stay code less.
 

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I don't remember seeing anybody doing that with the sr, especially the rr because of its ecu. The same reason the 02/03 qr doesn't have one.
 

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Sorry I was all confused so nevermind what I said there. Isn't the fic still a piggyback? Are you talking about tune drifting? Yea ecu's will do that due to its ability to change its fuel trims because of the sensors. It's a way for the ecu to recalibrate itself from changing weather or degrading sensors.
 
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