On the Procede, you would look at the CAN Fuel Trim Bank 1 and 2. BMW doesn't label it STFT and LTFT like other manufacturers do. There isn't really a long term fuel trim in the MSD80/81 ECU, AFAIK, due to the wide-bands reporting fuel trims in real time. Older cars with narrow-band pre-cat O2s have "idle additive" and "part throttle multiplicative" per BMW terminology.
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RRT
E92 335i/6MT with stuff and things
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