how to revert bimmerlabs tune to stock?

[goorackerelite]

HI there I just flashed my ECU to the bimmerlabs tune.

It's great, but the start up process has me worried. It idles rough for a few seconds and then squeaks as the idle settles down to 600RPM.

I see 4 stock DME files on the bimmerlabs page, but am unsure which one to flash to make my 128i go back to normal.

any help would be greatly appreciated.

[________]

Easier to fix what’s wrong with your engine no?
Plugs, coils, etc?

[goorackerelite]

I did all those already. When the car was stock it did not make any of these weird start up sounds or rough idle.

[goorackerelite]

it feels like to me the engine is trying to adjust the AFR, and/or the VVT motor/ Vanos solenoids as the car starts up and settles down. Maybe a vacuum leak?

[Almuliman]

Having an N51, there's nothing for me here, but are there any adaptations to reset or new ones from the tune for the rest of the system to adapt to?

[sourworm]

did you ever get this figured out? Im noticing higher long term fuel trims on my car post-tune (5% stock, 10% with tune).