I have a 2009 Honda Fit base model. A couple years ago, I accidentally put E85 fuel in my Fit, and I got the check engine light and some very sluggish performance for a while. It seemed to have corrected itself, but my check engine light came back on with the usual sluggish performance sometime later. I have gone through replacing all my ignition coils at the dealership, since it was believed that was the problem. That was not the problem. Is it possible that there is still something wrong with the computer and the fuel it's feeding to the engine?

 

I dont know what that fuel could do to yuh. I'd recommend getting the CEL diagnosed (or doin it yerself).
Experts say: dont leave ethanol in your tank, burn through it as quick as possible because, i guess, it's corrosive and eats rubber n such.

If you left it in there, well.. you might be best served by a professional diagnosis. Internet says you *should* be okay.