How to run E85 on stock 86 BRZ FRS with OFT tune

[Apex-Apex]

I've been running e85 for the past week now and it's been pretty good minus the slight cold start. This is my third time with e85 but first time on a N/A car. You definitely can feel how smooth it is as it goes through the RPM.

[StayPuft209]

Originally Posted by Apex-Apex

I've been running e85 for the past week now and it's been pretty good minus the slight cold start. This is my third time with e85 but first time on a N/A car. You definitely can feel how smooth it is as it goes through the RPM.

Speechless after looking at your picture lol

[FRSBRZGT86FAN]

Originally Posted by Apex-Apex

I've been running e85 for the past week now and it's been pretty good minus the slight cold start. This is my third time with e85 but first time on a N/A car. You definitely can feel how smooth it is as it goes through the RPM.

It was sub 50 degrees for a couple days, a week or two ago and I simply edited my cold cranking tables and had no issues, fires right up and can't wait to test it below that.

[poptopclk]

What is the current ROM for OFT for a stock FR-S with US emissions & Auto Trans for E-85

link appreciated ty

[steve99]

Originally Posted by poptopclk

What is the current ROM for OFT for a stock FR-S with US emissions & Auto Trans for E-85

link appreciated ty

latest oft tunes here

use the one that matches your calid

for stock frs on e85 use the EL header stage 2 E85 tune

http://www.openflashtablet.com/downloads/

[bleox]

So their is 26 pages and the search feature in tapatalk sucks.. So my question is on cruise control at 70mph my LTFT is at -12.50 steady and it drops to like 7.50 is that okay ?


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[steve99]

Originally Posted by bleox

So their is 26 pages and the search feature in tapatalk sucks.. So my question is on cruise control at 70mph my LTFT is at -12.50 steady and it drops to like 7.50 is that okay ?


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if its your first tank of e85 and their was a fair bit of petrol )n tank coupled with low ethanol content e85 then you will get high negitive fuel trims.

check your afr and for knock

see ecu logging link below

if no knock and the wide open throttle afr and commanded afr are close and in 12 range you will be fine

[bleox]

Originally Posted by steve99

if its your first tank of e85 and their was a fair bit of petrol )n tank coupled with low ethanol content e85 then you will get high negitive fuel trims.

check your afr and for knock

see ecu logging link below

if no knock and the wide open throttle afr and commanded afr are close and in 12 range you will be fine

Btw I meant -7.5.....Yeah it is my first tank of e85...I'm check it out I only have like 25 miles on this tank so far, I'm drive a lil more i rushed from the old tune to the e85 tune...STFT raised a lot and nothing was happening in the LTFT because according to guide it states shortly after it should increase nothing was happening and I switched over ...I think think I made the jump to the e85 to son and some gas aka petrol was still left in the lines or where ever the LTFT sensor is lol


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[bleox]

Also reading through some stuff Iam (advance advance multiplier..right?)shouldn't be higher then 1... Well even before I went on e85 it's always giving me a higher number not sure if that is okay


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[steve99]

Originally Posted by bleox

Also reading through some stuff Iam (advance advance multiplier..right?)shouldn't be higher then 1... Well even before I went on e85 it's always giving me a higher number not sure if that is okay


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Hmmm IAM value is between 0 and 1 . One is good , 0 is bad.


If your IAM is logging at values outside the range of 0 to 1 then its most likely their a problem with the logging on your oft.

[bleox]

Originally Posted by steve99

Hmmm IAM value is between 0 and 1 . One is good , 0 is bad.


If your IAM is logging at values outside the range of 0 to 1 then its most likely their a problem with the logging on your oft.

Way to fix it?... Just to be clear it the IAM appears from factory in the data display correct ???Well it also seems to change when I give it gas the patterns are consistent ...


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[steve99]

Originally Posted by bleox

Way to fix it?... Just to be clear it the IAM appears from factory in the data display correct ???Well it also seems to change when I give it gas the patterns are consistent ...


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I would say the iam logging is not correct for your ecu


you may need to update oft and template file


http://www.ft86club.com/forums/showp...79&postcount=2


or it more likely just an error if your on newer rom calid like F40C

[bleox]

Feeling maybe a lil stupid what is "ignition adv"...? And "adv. multiplier" I'm assuming adv multiplier is the IAM because that one is at 0.9


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[steve99]

Originally Posted by bleox

Feeling maybe a lil stupid what is "ignition adv"...? And "adv. multiplier" I'm assuming adv multiplier is the IAM because that one is at 0.9


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IAM = advance multiplier


Ignition advance is total ignition timing




IAM at 0.9 is acceptable but not good, on E85 you should be iam=1 as you should have no knock