Coding an E89 N20 Auto to cope with diff ratio change?

pbondar

Sergeant
May 30, 2020
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Complex story, had my 3.08 diff modifed to fit Quaife LSD..then selling car, decided to take out expensive diff.

Only one available was from a manual with different ratios.

Fitted and now got drive train warning and limp mode.

Any folks know if/how to code around this issue or is it just buy a 3.08 diff again?