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WOLF:
Another thing I failed to point out in my first post.
If you are disconnecting your battery the DME/ECU drops certain settings.
They are more or less reset to a base line setting once you reconnect the battery.
One of those settings or conditions is fuel trim.
So since fuel trims are a "learned" condition or setting, the ECU/DME has to relearn the fuel trims once the battery is reconnected and the car has gone through several drive cycles.
So sometimes the car runs differently until the DME/ECU relearns the old settings or conditions.
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