New Stage 2 UEL (91-93 and E85) OTS tune files

[steve99]

Originally Posted by RedFRS4me

I think something happened when i transitioned from e85 to the new ofh tunes. I took the car for a spirited drive to burn the rest of the e85 and it may have killed my o2 sensor. My STFT are 0 while my afr is between 12.5-13.5 while idle or cruising. When the car is cold it is normal but as the car warms up it goes rich and stft go zero no matter what throttle input.

sound like its stuck in open loop fueling mode , log fueling mode and see, it could be a problem with rear 02 or the tune , did you do any edits on tune ?

[RedFRS4me]

Originally Posted by steve99

sound like its stuck in open loop fueling mode , log fueling mode and see, it could be a problem with rear 02 or the tune , did you do any edits on tune ?

No edits. Just uploaded to oft and flashed ecu. I think my spirited runs with the remaining e85 screwed it up. I went on a 700 mile trip and the afr was like you said stuck in open loop. It would be fine when starting the car after sitting for a minute with the engine off. It would read the proper afr then creep back to rich

[Gutterboy]

tried to edit the tune with shiv's xml's but the tables for cold start were missing.

even when i used notepad++ to put in the proper wayno lines of text they wouldn't show up.

ventured into shady territory by using the 2.07 xml to access the new tune to get those tables back and make the parameter changes. Then removed that def and went back into the rom with shiv's xml to do the rest of the parameter changes and a compare against my previous cold start stage 2 tune and it showed only the 12 table differences (plus a couple for rad fan edits and remaining cold start changes). combed through all number and axes and nothing wonky so gave it a roll and no brick.

looks like i got just a couple little blips of knock of like -.14 but my IAM is held at 1 and this is on husky 94 in the great white north.

running a tomei UEL with Invidia overpipe, resonated front pipe and N1 catback with a drop in air intake filter. hope the data helps, any comments on the logs would be much appreciated. No flaming on logging some of the useless parameters, didn't bother with changing them all.

glad to see no knock correction in my first hard 1st, 2nd, and just into 3rd gear pull from a red light with the boy in the back. but i am wondering if someone can also educate on what the flkc means versus knock correction, i thought that was the fully learned knock correction and was a target and not the same as knock correction; perhaps someone can jog my failed memory here.

Can definitely attest to the gain from the butt dyno! When i first tried stage 2 with my exhaust set up i really didn't feel much from stage 1 with the new exhaust. This is a noticeable jump rather than just a mild improvement at the top end.

Hats off to shiv on this.

http://www.datazap.me/u/gutterboy/fi...=1-4-6-8-10-13

http://www.datazap.me/u/gutterboy/fi...og=1&data=1-10

one last question, i know several of you flamed a guy couple pages back for having his interpretation backwards on AFR numbers, but can someone enlighten me as to why a higher number is lean? By definition of Air to fuel ratio i would have thought a high number at high load is indeed lean since that would be much more air than fuel than as per the expected typical ratio. go easy on the flaming please.

[steve99]

Originally Posted by RedFRS4me

No edits. Just uploaded to oft and flashed ecu. I think my spirited runs with the remaining e85 screwed it up. I went on a 700 mile trip and the afr was like you said stuck in open loop. It would be fine when starting the car after sitting for a minute with the engine off. It would read the proper afr then creep back to rich

That should not have any effect, heaps of guys track all the time on E85 no issues.


I think you have a fault with possibly rear 02 sensor or some other issue.


when you back on petrol flash a stock tune and see if it does it.

[steve99]

Originally Posted by Gutterboy

tried to edit the tune with shiv's xml's but the tables for cold start were missing.

even when i used notepad++ to put in the proper wayno lines of text they wouldn't show up.

ventured into shady territory by using the 2.07 xml to access the new tune to get those tables back and make the parameter changes. Then removed that def and went back into the rom with shiv's xml to do the rest of the parameter changes and a compare against my previous cold start stage 2 tune and it showed only the 12 table differences (plus a couple for rad fan edits and remaining cold start changes). combed through all number and axes and nothing wonky so gave it a roll and no brick.

looks like i got just a couple little blips of knock of like -.14 but my IAM is held at 1 and this is on husky 94 in the great white north.

running a tomei UEL with Invidia overpipe, resonated front pipe and N1 catback with a drop in air intake filter. hope the data helps, any comments on the logs would be much appreciated. No flaming on logging some of the useless parameters, didn't bother with changing them all.

glad to see no knock correction in my first hard 1st, 2nd, and just into 3rd gear pull from a red light with the boy in the back. but i am wondering if someone can also educate on what the flkc means versus knock correction, i thought that was the fully learned knock correction and was a target and not the same as knock correction; perhaps someone can jog my failed memory here.

Can definitely attest to the gain from the butt dyno! When i first tried stage 2 with my exhaust set up i really didn't feel much from stage 1 with the new exhaust. This is a noticeable jump rather than just a mild improvement at the top end.

Hats off to shiv on this.

http://www.datazap.me/u/gutterboy/fi...=1-4-6-8-10-13

http://www.datazap.me/u/gutterboy/fi...og=1&data=1-10

one last question, i know several of you flamed a guy couple pages back for having his interpretation backwards on AFR numbers, but can someone enlighten me as to why a higher number is lean? By definition of Air to fuel ratio i would have thought a high number at high load is indeed lean since that would be much more air than fuel than as per the expected typical ratio. go easy on the flaming please.

AFR = Air fuel ratio


so say 14.7 air/fuel ratio means 14.7 parts air to one part fuel, this is stoichiometric ratio or theoreticly the best ratio to run for complete burning of fuel with petrol


so if you go to AFR=20 then its 20 parts air to one part fuel (ie less fuel = leaner)


you go to say 12 AFR its 12 parts air to one part fuel ie rich

[HLHachiRoku]

AFR. Lambda (λ)

14.7:1 __ 1 =Stochiometric
12.8:1 __ 0.87 =Lean Best Torque (LBT)
12.2:1 __ 0.83 =Mean Best Torque (MBT)
11.76:1 __ 0.8 =Rich Best Torque (RBT)
11.01:1 __ 0.75 =Flame speed fastest in cylinder

Here's a chat to gauge what he means. I'm still unclear how our o2 sensors are reading so well if they aren't wideband. Might be why wot maps run richer just in case lol. I don't have the money atm to go get one.

[steve99]

Originally Posted by HLHachiRoku

AFR. Lambda (λ)

14.7:1 __ 1 =Stochiometric
12.8:1 __ 0.87 =Lean Best Torque (LBT)
12.2:1 __ 0.83 =Mean Best Torque (MBT)
11.76:1 __ 0.8 =Rich Best Torque (RBT)
11.01:1 __ 0.75 =Flame speed fastest in cylinder

Here's a chat to gauge what he means. I'm still unclear how our o2 sensors are reading so well if they aren't wideband. Might be why wot maps run richer just in case lol. I don't have the money atm to go get one.

The stock sensor is not a true wideband but it reads way good enough for NA and if you recalibrate it it read reasnobly well down to about 10 afr so not too bad for boosted


Stock scaling stops at 11.3


but you can re-scale it in tune


http://www.ft86club.com/forums/showthread.php?t=82875

[ST-A]

Originally Posted by Steve99

Quote:
Originally Posted by elBarto
I already run it on my A00G Euro GT86, you open the B01C rom with the correct definitions, open your AxxG rom and copy the tables mentioned above.
Flash and go


Guys just be careful @ST-A is using tactrix so his A00G rom is a real A00G rom @elBarto is using an OFT A00G rom which is rearly an A01G rom calid hacked to look like an A00G.


now with those two rom is ok as defs are compatible from memory but just be careful , its not always the case :-)

yeah i just looked now OFT 2.0.76 A00G tune vs OFT B01C and ported it over (like bart) , but after all tables are ported over and you compare them, it states "38 missing tables" ! so be carefull.

[steve99]

Originally Posted by ST-A

yeah i just looked now OFT 2.0.76 A00G tune vs OFT B01C and ported it over (like bart) , but after all tables are ported over and you compare them, it states "38 missing tables" ! so be carefull.

Ok 2 thinks.


their can be different tables defined in defs for different rom calid's especially different countries.


also, their are also country specific settings that should not be copied across.


The best approach is to compare say a stock B01C rom with a tuned BO1C rom using same definition.


Then note the table differences between those.


Then only copy those tables across to the A01G rom.


you would be much better using A01G rom as it has important transient ignition retard changes not in A00G rom. The help prevent knock on high rpm gear shifts which contributed to DI seal failures

[elBarto]

Originally Posted by steve99

you would be much better using A01G rom as it has important transient ignition retard changes not in A00G rom. The help prevent knock on high rpm gear shifts which contributed to DI seal failures

He's using also the OFT roms, so it is already a A01G .
Don't know if he flashes those with an OFT or the tactrix.

[Kronos]

Originally Posted by FRSBRZGT86FAN

Nothing "messes" with the stock tune so don't be afraid you can go ahead and install it. You'll just get a CEL after install which will be easily cleared when the OFT arrives.


To prep for your OFT however download the openflash manager:
http://www.openflashtablet.com/downloads/

and also those other two things below

I always wondered about that. So it would be ok in the hypothetical scenario to flash back to stock tune while still having the OFH installed. It wouldn't hurt a thing?

[HLHachiRoku]

It won't hurt anything, just get a cel code pop up eventually is all.

[HLHachiRoku]

Posted in other thread data logs sry =O

[FRSBRZGT86FAN]

Originally Posted by Kronos

I always wondered about that. So it would be ok in the hypothetical scenario to flash back to stock tune while still having the OFH installed. It wouldn't hurt a thing?

Again, the tunes aren't "edited" by the car, you simply flash back to stock on OFH and won't have any issues. HOWEVER, you will get a P0420 cel because it's catless and the stock tune doesn't have that code disabled.