Question about e40 tune

[ysjeon1698]

I will be getting MHD and get rid of my jb4 g5.

When I get e40 map, do I need flex fuel kit? or how will I know whether im getting 40% of e85 or not?

 

[doublespaces]

Might want to read this before you make any decisions:

https://bmw.spoolstreet.com/threads/n54-stock-dme-flex-fuel.1185/

 

[ysjeon1698]

Thanks! I think it was just posted on fb web as well! but.. is it from MHD?

 

[doublespaces]

Thanks! I think it was just posted on fb web as well! but.. is it from MHD?

Yes I posted it, and I believe it should be integrated into MHD. You'd need to ask @Martial@MHD or @jyamona or @CKI

 

[ysjeon1698]

Yes I posted it, and I believe it should be integrated into MHD. You'd need to ask @Martial@MHD or @jyamona or @CKI

I just got tablet/ cables.. do you think I should wait for this to be implemented? or just go ahead and get e40 map ??

 

[doublespaces]

I just got tablet/ cables.. do you think I should wait for this to be implemented? or just go ahead and get e40 map ??

I think you'll need an ethanol tune no matter what. I would wait a little and see if they have any timeline, and then you could make a better decision probably.

 

[Aaron]

Without adding a sensor, you're stuck with calculating it yourself, and just assuming the gas station is at the proper e70-e85 levels. I did it this way for some time, and still now, and haven't run into any issues.