[HELP!] random codes

[sonic32]

Hey guys I'm at waterfest and I signed up to run the quarter even though it's over 100 degrees outside.
Stage 2 GIAC B8 6MT

I've been running a mix of E85 in the car for more than 6 months now and before the summer I never had a problem with lean codes except if I messed up the mix and put too much E85 but I've been going lower and lower in E85 content and I test it every time and it's always been between e83 and e86 this summer and I still get lean codes on both banks, but along with that I got 2 other codes that are worrying me, see photo attached below.

[chaos2984]

That 1844 code is very concerning over the rest. Seems like the ecm has an internal problem. And that can cause all sorts or problems or ghosts.

But I would jut clear the codes and let it ride and see if it comes back. But as far as your lean codes go. Just put some high test in it and see what happens with normal driving and see if the codes come back. If they don't its your fuel mix your using.