E85 to gas AFR scale

[Rellim51]

Is there a way to make my AFR table read on the gas scale while running E85( no flex)? I’m having trouble getting my mind wrapped around the E85 scale.

 

[TurboBob]

You basically need a flex tune with the flex turned off and the E85 req fuel setting. There are just a handful of changes needed to switch over, but Eric has done more of these than me. So wait for him to confirm.

But the basics are: leave the req fuel alone, change the stoich afr in the general setup to 14.7, change the wideband back to gasoline by setting it to Innovate LC-1, and redo your afr target table.

Might need to look at the afr safety settings and a few more.

But like I said, wait for eric to confirm (and save a copy of your current tune!)

Bob

 

[EricM]

Yes, that sounds correct. Also need to change the EGO control upper and lower limits.

Try to learn the E85 AFR though.