Open Flash Tablet - OFT TIPS Trick’s & FAQ

[steve99]

Originally Posted by ValkenRebel

Hey guys. Firstly, thanks Steve and everyone else for all the helpful info. It has been invaluable

I recently received my OFT and have since flashed to the Stage2 EL E85 tune.

I think everything looks ok (noob analysis based on other people's logs), but I have been unable to get the Advance Multiplier to register on my OFT - which from what I've read is one of the main things to check when looking at logs for knock.

Does anyone have any suggestions? I tried contacting the Open Flash guys through their website contact form, but haven't heard back from them.

ZA1JF20P is my Cal Id

Here's a log with some minor KC and IAM at 0 (E85 - after 50km easy run-in): http://www.datazap.me/u/valkenrebel/...log=0&data=1-4

Thanks in advance for any advice people have.

Originally Posted by Boomerang

IAM, MAF voltage and a few other things don't log on newer ROM's, like mine and yours.
I've been trying to get it fixed for a while with Shiv but no luck yet.

yep it a bit of a problem

looks like FLKC is not monitoring correctly either
but you can derive IAM and FLKC by using KC LEARNED

you will need to open your tune in Romraider and look at the Knock correction Advance MAX A table

FBKC is most noticeable in 2000-3200 RPM high load
FLKC is most noticeable in 5000-7500 RPM high load


KCA = (values in "Knock Advance Max A table" * IAM ) + FLKC(usually negitive)

Total_Timing = Base_timing + KCA + other offsets due IAT/coolant temp ect

FBKC is what will cause your IAM to drop if its severe enough and often enough. Not sure of the exact parameters but appears. Something like events over -1 ((FBKC) and say 4 in a minute or so , just guessing here. Conversely if no FBKC knock events are detected over a period of time (seems to be a longer period) your IAM will start to rise again towards 1.
FBKC used to alter IAM (coarse correction) does not retard timing instantly.

If you get enough FLKC it can also cause the IAM to drop

FLCK retards the timing instantly by decrementing the KCA value at that point instantly.

If your IAM drops below 1 then it decreases the timing added by KCA, effectively retarding timing over entire rpm/load range.

KCA = ((Values in Knock Control max A Table) * IAM) + FLKC (usually negative)


IAM= Ignition advance multiplier (coarse correction)
FBKC= Feed back knock control (coarse correction)
FLKC = Fine learning knock control
KCA = Knock control Advance
IAT = Intake Air temperature.
KC Learned = Knock correction Learned - Should match values in "Knock Correction Advance Max A " for each RPM/Engine Load point table if you have no knock.

If you have an OFT it now monitor's FLKC directly. So You don't have to derive it from KC Learned (KCA) value. Which would mean looking for a drop in the KC Learned value when compared to the "Knock correction advance max A table" that was not due to IAM . You can usually pick it as a sharp chunk out of the KC learned value as opposed to a fairly smooth curve. So you need to look at the KC Learned value for an RPM vs Engine Load point and compare it to values in "Knock Correction Max A" table in RomRaider for your ROM.

FLKC = KC Learned - (Knock Correction Advance Max A Table value * IAM)

If is less (by an amount say more than 0.5) then you likely have knock or your IAM =1 than it likely knock (FLKC). The CPU Averages values between the RPM/LOAD cells so hardly ever exact. If you IAM is less than KC learned values are always less.

Eg you log shows at RPM=6000 Engine Load=1.1 IAM=1 KC Learned = 3.6 you look in "Knock Correction Advance Max A' table and find value is 2.1 then you have knock (FLCK) around that point.


As you seem to be monitoring MAF flow correctly you can use this to derive MAV V by looking at the Maf Scaling table in your tune on romraider.

from what i can see it looks ok.

little on the rich side at upper rpm but thats safe just costs a bit of power. your about 11.5 target is about 12.3
cannot see any significant knock, your on E85 so would not expect any

[ValkenRebel]

Originally Posted by steve99

yep it a bit of a problem

looks like FLKC is not monitoring correctly either
but you can derive IAM and FLKC by using KC LEARNED

you will need to open your tune in Romraider and look at the Knock correction Advance MAX A table

FBKC is most noticeable in 2000-3200 RPM high load
FLKC is most noticeable in 5000-7500 RPM high load


KCA = (values in "Knock Advance Max A table" * IAM ) + FLKC(usually negitive)

Total_Timing = Base_timing + KCA + other offsets due IAT/coolant temp ect

...

As you seem to be monitoring MAF flow correctly you can use this to derive MAV V by looking at the Maf Scaling table in your tune on romraider.

from what i can see it looks ok.

little on the rich side at upper rpm but thats safe just costs a bit of power. your about 11.5 target is about 12.3
cannot see any significant knock, your on E85 so would not expect any

Damn Steve, you're the best bro!

Thanks for the feedback - as to what values seem to be logging correctly.

I will pull out the old calculator and try to derive it the way you've suggested.

Cheers.

[fibble]

Hi guys - just further to the logging issue on newer ROMs (e.g. mine is D00G 2014/15 86).

Was in contact with Shiv on the issue last week (via e-mail) - his response was that they are expecting an update to fix this in the coming week or so.

Fingers (and everything else) crossed.

[Julian M]

anyone use the software on a mac?


Sent from my iPhone using Tapatalk

[ValkenRebel]

Thanks for the update fibble

On a sadder note, my 'Check Engine' light came on when I started driving home from work today.

I pulled over and saved the short log: http://datazap.me/u/valkenrebel/e85-...g=0&data=1-5-9

I turned the engine off, left it for 30 seconds and tried starting again. The engine light stayed on again. I tried off then on again, but it was still there.

I had to get home, so I drove it as easy as I could (apart from one or two tests). I noticed on this second log that flkc stayed at 0 for the entire drive home even with the 2 test pulls: http://datazap.me/u/valkenrebel/e85-...g=0&data=1-5-9

The engine sounded/felt fine. No 'crawl home' mode engaged.

Any thoughts on what I should do? Can OFT read/log engine light codes?

Cheers.

[steve99]

Originally Posted by ValkenRebel

Thanks for the update fibble

On a sadder note, my 'Check Engine' light came on when I started driving home from work today.

I pulled over and saved the short log: http://datazap.me/u/valkenrebel/e85-...g=0&data=1-5-9

I turned the engine off, left it for 30 seconds and tried starting again. The engine light stayed on again. I tried off then on again, but it was still there.

I had to get home, so I drove it as easy as I could (apart from one or two tests). I noticed on this second log that flkc stayed at 0 for the entire drive home even with the 2 test pulls: http://datazap.me/u/valkenrebel/e85-...g=0&data=1-5-9

The engine sounded/felt fine. No 'crawl home' mode engaged.

Any thoughts on what I should do? Can OFT read/log engine light codes?

Cheers.

yes oft can read and clear engine codes.

if cel is on and oft says no codes then it not engine code oft only rewads engine codes not from other modules like vsc or dash cluster.

if you have android torque app or scantool it will read all codes

arrh just noticed your long term fuel trim is at 35% in some low rpm areas i think you likely have an exhaust leak, do you have aftermarhet header ? did you use new gaskets and are the 02 sensors screwed in all the way to the rings on sensors

did you have oft pluggeg into car when code showed up as it may be loose obd plig causing interruption to connection this can trigger a cel light due corrution on cars can buss communications.

[Boomerang]

Originally Posted by ValkenRebel

Thanks for the update fibble

On a sadder note, my 'Check Engine' light came on when I started driving home from work today.

I pulled over and saved the short log: http://datazap.me/u/valkenrebel/e85-...g=0&data=1-5-9

I turned the engine off, left it for 30 seconds and tried starting again. The engine light stayed on again. I tried off then on again, but it was still there.

I had to get home, so I drove it as easy as I could (apart from one or two tests). I noticed on this second log that flkc stayed at 0 for the entire drive home even with the 2 test pulls: http://datazap.me/u/valkenrebel/e85-...g=0&data=1-5-9

The engine sounded/felt fine. No 'crawl home' mode engaged.

Any thoughts on what I should do? Can OFT read/log engine light codes?

Cheers.

Yep, you probably had a loose connection in the OFT cable, happened to me a few times too. Makes the check engine light come on.
Just plug in your OFT and read the code then clear it.
Let us know if you need more help.

Cheers

[ValkenRebel]

Originally Posted by steve99

yes oft can read and clear engine codes.

if cel is on and oft says no codes then it not engine code oft only rewads engine codes not from other modules like vsc or dash cluster.

if you have android torque app or scantool it will read all codes

arrh just noticed your long term fuel trim is at 35% in some low rpm areas i think you likely have an exhaust leak, do you have aftermarhet header ? did you use new gaskets and are the 02 sensors screwed in all the way to the rings on sensors

did you have oft pluggeg into car when code showed up as it may be loose obd plig causing interruption to connection this can trigger a cel light due corrution on cars can buss communications.

Thanks heaps for the CEL tips guys - I unplugged OFT and started engine, before plugging back in - worked a treat.

As far as exhaust leak is concerned: the car is completely stock with 3500km on the clock. I noticed it was only doing 35% ltft during the engine start warmup phase. Here's the latest log - based on this log do you still think there may be a leak? http://datazap.me/u/valkenrebel/test...log=0&data=1-8

[steve99]

Originally Posted by ValkenRebel

Thanks heaps for the CEL tips guys - I unplugged OFT and started engine, before plugging back in - worked a treat.

As far as exhaust leak is concerned: the car is completely stock with 3500km on the clock. I noticed it was only doing 35% ltft during the engine start warmup phase. Here's the latest log - based on this log do you still think there may be a leak? http://datazap.me/u/valkenrebel/test...log=0&data=1-8

hmmm ,its still got ltft +35% at idle/low rpm, seems a bit suspect, its not good but not rearly dangereous at such low rpm. It possible its due to just changing over to E85 but it should sort itself out fairly quickly.


The AFR looks ok at higher rpm.


If that 35% ltft persists then their is something wrong somewhere


have a look at the maf scaling in the tune for your calid and compare it to say an A01G rom for E85 and see if scaling is same

[ValkenRebel]

Originally Posted by steve99

hmmm ,its still got ltft +35% at idle/low rpm, seems a bit suspect, its not good but not rearly dangereous at such low rpm. It possible its due to just changing over to E85 but it should sort itself out fairly quickly.


The AFR looks ok at higher rpm.


If that 35% ltft persists then their is something wrong somewhere

I took two logs today (one to work & one back home - normal driving - ambient temps: 12-15deg C) and noticed that the ltft keeps jumping to ~34% for the first 4-5mins after startup (until it hits 131 degrees on the coolant temp.), then it returns to more normal levels.

http://datazap.me/u/valkenrebel/driv...8&zoom=0-10662

http://datazap.me/u/valkenrebel/driv...8&zoom=0-10835

Originally Posted by steve99

have a look at the maf scaling in the tune for your calid and compare it to say an A01G rom for E85 and see if scaling is same

I checked the maf scaling and they were identical (Both were OTS_v2.076 files).

Note: I flashed the ECU with the Stage 2 EL E85 F20P.bin that came pre-installed on the OFT. I assumed this would be the same version as the one downloaded in OTS_v2.076, is this correct?

I can't download the .bin file (that I flashed) directly from the OFT - the 'save' icons are all greyed out (except for my car's stock ROM, which I have saved in multiple locations ) Is there a way to access these default (Stage 1 & 2).bin files that came pre-installed (to verify version)?

Thanks again for the advice - otherwise I'd be a total stress head right now.

[phrosty]

Originally Posted by ValkenRebel

I took two logs today (one to work & one back home - normal driving - ambient temps: 12-15deg C) and noticed that the ltft keeps jumping to ~34% for the first 4-5mins after startup, then it returns to more normal levels.

How does it sound when you start it up? Can you hear a leak?

[steve99]

Originally Posted by ValkenRebel

I took two logs today (one to work & one back home - normal driving - ambient temps: 12-15deg C) and noticed that the ltft keeps jumping to ~34% for the first 4-5mins after startup (until it hits 131 degrees on the coolant temp.), then it returns to more normal levels.

http://datazap.me/u/valkenrebel/driv...8&zoom=0-10662

http://datazap.me/u/valkenrebel/driv...8&zoom=0-10835



I checked the maf scaling and they were identical (Both were OTS_v2.076 files).

Note: I flashed the ECU with the Stage 2 EL E85 F20P.bin that came pre-installed on the OFT. I assumed this would be the same version as the one downloaded in OTS_v2.076, is this correct?

I can't download the .bin file (that I flashed) directly from the OFT - the 'save' icons are all greyed out (except for my car's stock ROM, which I have saved in multiple locations ) Is there a way to access these default (Stage 1 & 2).bin files that came pre-installed (to verify version)?

Thanks again for the advice - otherwise I'd be a total stress head right now.

You will need to download the oft tune pack from the oft download page to see the tunes, you can then upload those to oft instead of the preconfigured ones which are not readable.

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


Toyota GT86 Off-The-Shelf (OTS) Tune Files (v2.076) UPDATED 3/30/16


If your aussie suggest you join this facebook group for some customised tunes for aussies

https://www.facebook.com/groups/437544459724108/

[ValkenRebel]

Originally Posted by phrosty

How does it sound when you start it up? Can you hear a leak?

Hey phrosty, I haven't noticed any real change in exhaust sound since I bought it (3500km on clock). I think it has to do with the ROM I've flashed as it seems to only happen at startup (when coolant temp below ~130 deg F). Once it's warmed up the ltft behaves itself.

Originally Posted by steve99

You will need to download the oft tune pack from the oft download page to see the tunes, you can then upload those to oft instead of the preconfigured ones which are not readable.

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


Toyota GT86 Off-The-Shelf (OTS) Tune Files (v2.076) UPDATED 3/30/16


If your aussie suggest you join this facebook group for some customised tunes for aussies

https://www.facebook.com/groups/437544459724108/

I've downloaded the Tune Files already, so I think I might just reflash to the Stage2 from that download to be sure of its contents.

I applied to Join the facebook group - membership pending. I may wait to get access to the Aussie tunes before flashing - are the Stage 2 EL E85 tunes much different for our (AU) conditions? Can you briefly describe the reasons for these changes (for purely educational purposes)?

Thanks again for the input guys.

[steve99]

Originally Posted by ValkenRebel

Hey phrosty, I haven't noticed any real change in exhaust sound since I bought it (3500km on clock). I think it has to do with the ROM I've flashed as it seems to only happen at startup (when coolant temp below ~130 deg F). Once it's warmed up the ltft behaves itself.



I've downloaded the Tune Files already, so I think I might just reflash to the Stage2 from that download to be sure of its contents.

I applied to Join the facebook group - membership pending. I may wait to get access to the Aussie tunes before flashing - are the Stage 2 EL E85 tunes much different for our (AU) conditions? Can you briefly describe the reasons for these changes (for purely educational purposes)?

Thanks again for the input guys.

our 98 ron is not as good as 91/93 usa fuels.
better maf scaling
lpts of little tweaks to make it run smoother start quieter and especially start well on our high e contant e85