Codes after E85 tune

[bmiracle]

First I am working with Mr Winfield to see whats going on. But here is the situation. I put a 93 tune on the truck with no issues. When I tuned it on E85 (on second steps) the truck thru 3 codes P2198 O2 sensor biased/stuck rich (bank2 sensor 1) P2196 same as the other only bank 1 and P05A1 grille shutter A minimum/maximum stop performance. Anyone ever see these codes? Trucks performs fine with no noticeable issues. Anyone ever have these codes?

 

[WTX]

I threw that code once after I bounced it off the rev limiter. Cleared them and no issues.
Those codes were on my first tank of E85 I had 1/4 of 93 mixed in. Cleared up once e85 circulated all the way through. Winfield will get it sorted.

#raptorsofthecorn

 

[kawhi]

weird, never seen those codes before. hope you get it sorted!

 

[WTX]

Is this your first tank of E85? If so how much 93 was in the tank?

 

[bmiracle]

fixed. E85 in NE is actually E65

 

[Fire Ball]

Pump E85 is a roll of the dice.., get your self an E85 tester.

 

[WTX]

Pump E85 is a roll of the dice.., get your self an E85 tester.

I agree. I’ve definitely noticed hotter fuel in different cities. A little town in west Texas has the best E85 I have found, gauged by the butt dyno.

 

[TwizzleStix]

I monitor E-content real-time and have the Fuel-it app calculator pump content set to E83 vs E85 snd set the tank amount about 3 gallons less than the indicated amount to ensure I always have a bit more than E50 when filling up. I usually measure out to E53-E55. Its fine to have a few % more E50 for sure and I've tun as low as E35 when E85 fuel is not available during cross-country drives.

If you're not poking it WOT its fine as the ECU will retard the timing just fine. Now that said, if you're tuned hard to the limit, I wouldn't recommend it, but Winfield doesn’t do that unless you push for it specifically for racing only. Note I do my own tune so I have complete control.

 

[bmiracle]

I don’t need tuned to the limit. I did test it and it came back 65% Winfield did his thing and all good. Truck runs smooth and is like greased lighting on acceleration. Can’t wait to get it on a dyno