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That's basically right.
If you have the 02 feedback turned ON then the car will try to cycle the 02 sensor in closed look to adjust your off boost afrs. If you have it turned off it's basically just pulling straight off what your map is set at (up until a certain TPS voltage) then it switches right off the map). similar to how a stock ecu works only you dont have the abilty to turn off the 02 feedback.
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