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Well, this is annoying.

What I would do is start with a completely stock map. Adjust the injector constant by 30% if running full E85, then let it run there for a while, go cruise a little, and let the LTFT settle in then...

Great advice here and this was something I was actually mulling over in my head. My LTFTs change to about 1.6 at idle, then when I cruise they end up going to -0.8. This, in turn changes the STFT,...

That's exactly what it means. So since they're bigger, they can squirt XXX amount of fuel in a shorter amount of time, which is good.

Seems right.

It's really easier if you just make a PID that keeps track of the LTFT, then you can just paste as a percent in the table. I just do it the long way though, too lazy to make the PID...

No, you will want to take 5.5% out of 100%, in decimal form. Whenever you modify a number by a percent, you multiply it by the decimal amount. So 5.5% in decimal form is 0.055, if you wanted to add...

Yes, just run it til your long term fuel trims stop changing and then multiply the injector constant by the LTFT. Could prolly get it in the ballpark by multiplying the injector constant by 0.86...

I would guess most people will say to go through all the LNF tuning threads and how to's and then tackle it yourself. Most of the threads are tagged with LNF in the title, so it's easy to search on...

Thanks John and Tom and Bill for the input, glad to see the mentors stepping back in. I agree, I am basically out of fuel on the stock system on full E85, but I am getting close to getting the fuel...

Can I bring this back from the dead? I feel like E85 might not be a waste of time. I have been running it for a week now (may be E70, can't find my tester), but I have successfully tuned it pretty...