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Francos24

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So i tuned my car to e85 and after about a day on it I decided to gun it and i got a check engine light p0171 and i felt like i lost some of my power
Also is it okay to run e85 on a e70 tune
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RMoeslein

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E70 should be the minimum, anything above is good. go back to bama.
 

SnowFox

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So i tuned my car to e85 and after about a day on it I decided to gun it and i got a check engine light p0171 and i felt like i lost some of my power
Also is it okay to run e85 on a e70 tune
Did you data log it? My first E85 tune came in lean under WoT.
 

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Dave2013M3

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daSNAK3

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I would go with a better tuner for sure.
 

junits15

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Nah i didnt prolly gonna drain the fuel tank i think the e85 fried my o2 sensor behind my cat
This code is influenced by the downstream sensor, are you running stock cats?

I'd be surprised if you were actually running lean, its very difficult to make this car truly run lean unless you do some egregious stuff.
 
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Francos24

Francos24

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This code is influenced by the downstream sensor, are you running stock cats?

I'd be surprised if you were actually running lean, its very difficult to make this car truly run lean unless you do some egregious stuff.
Yeah im on stock cats the code said i was running lean but my afr was around 10 which ive heard is normal for e85
 

JakeLethal

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So i tuned my car to e85 and after about a day on it I decided to gun it and i got a check engine light p0171 and i felt like i lost some of my power
Also is it okay to run e85 on a e70 tune
Nope, you need E85 because the computer is going to read the ethanol contact and if it's off, the sensor will not like it. Do you have an E85 tune or E70? Just wanna be sure.
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