Originally Posted by
tunerpro
The E82 and E92 pinouts are totally different, in fact totally different ECU, totally different CPU even. Good luck with the dealer, they have access to wiring diagrams, but as far as I know, there's never been a vehicle produced with a discrete flex fuel sensor using an E82 ECM. You're left with trial and error: applying a proper frequency signal to every unused pin on the ECU, while monitoring the ethanol content data stream, with a flash in it that has the flex fuel sensor properly enabled.
Let us know if you find out, though!