Just Released: OFT Data Display Updates

[solidONE]

Originally Posted by steve99

Certianly seems a strange co0incidence

maybe log
KC Learned
FLKC (the problem one)
Ignition timing total

You should see a corresponding drop in KC Learned and Ignition timing total when FLKC goes negative. If their was a weird logging issue then it should show up. if FLKC goes -3 their should be corresponding dip in KC learned and Total Ignition timing applied.

logging is done by the OFT software asking for the contents of a specific RAM address in the ECU a scaling factor may then be applied and the result is presented in the log. Each ROM type ie C/G/A ect and sometimes the different revisions of those ROM's will have different locations for these RAM addresses ,its possible something is wrong but everyone on same ROM would have the problem. But it may not be a universal issue for all ROM types.

I doubt they have changed anything in the Flashing side of things and if that was out of wack the FLKC would be the least of your problems. The OFT corrects the checksum and I would imagine then checks the checksum of the flashed ROM and would throw an error if that was incorrect. If the flash was bad its likely the car would not run.

As @troek said you can trigger false knock indication from loose bolts or a washer or similar dropped down near knock sensor or exhaust hitting on sub-frame ect

Wasn't able to capture much flkc spikes aside from 2 little .65 in 5th gear I was not aware what was actually going on looking at the OFT display as the flkc decided to freeze at .65 and kc at .68 seconds after I started to log... will try again in warmer weather or get my oil temps hotter before I start next time. or maybe reflash the more knock prone OTS tune.

http://datazap.me/u/solidone/stg1-20...0&data=1-12-14
No changes were made to the car or tune since yesterday BTW.

[steve99]

Originally Posted by solidONE

Wasn't able to capture much flkc spikes aside from 2 little .65 in 5th gear I was not aware what was actually going on looking at the OFT display as the flkc decided to freeze at .65 and kc at .68 seconds after I started to log... will try again in warmer weather or get my oil temps hotter before I start next time. or maybe reflash the more knock prone OTS tune.

http://datazap.me/u/solidone/stg1-20...0&data=1-12-14
No changes were made to the car or tune since yesterday BTW.

seems to correspond when you get the fLKC, KC learned drops so logging looks ok

http://datazap.me/u/solidone/stg1-20...4&zoom=236-548

[solidONE]

Originally Posted by steve99

seems to correspond when you get the fLKC, KC learned drops so logging looks ok

http://datazap.me/u/solidone/stg1-20...4&zoom=236-548

The KC Learned also looks like it stayed dropped even after flkc has come back up to 0. Does not that indicate that there should still be some flkc than what is showing in the log? Thanks @steve99!

http://datazap.me/u/solidone/stg1-20...5&mark=377-386

[steve99]

Originally Posted by solidONE

The KC Learned also looks like it stayed dropped even after flkc has come back up to 0. Does not that indicate that there should still be some flkc than what is showing in the log? Thanks @steve99!

http://datazap.me/u/solidone/stg1-20...5&mark=377-386

That knock is very minor anything 0.7 or less no rearly anything to worry about

I cannot say I understand the exact working of the knock control system but the FLKC and FBKC you see are the result of some complex calculation the ecu does based on input from the knock sensor.

Then it appears further calculations/timers ect are done/applied and these FLKC detections are applied to the timing for a period of time. sometimes you can see positive FLKC as the ecu returns timing. FLKC appears to be applied to the total timing almost instantly and removed soon after probably if certain condition met

since the OFT interrogates the ECU at about 5 times a second its possible it may miss some FLKC events, I generally see all events when logging with tactrix at about 20 times a sec

FBKC seems to be the input to the coarse correction calculation and if certian levels and frequency of FBKC occurr then the IAM is adjusted according to the level and frequency of the FBKC detections. Some time later if no or less FBKC is detected the IAM will start to climb towards one again. This is just what I have observed and deduced after reading the romraider explaination's and may not be 100% correct.

As I understand it the FBKC and FLCK are events or detections by the knock sensor then the ecu decides what its going to do based on the level and frequency of those detections and what knock correction mode the ecu is working in which aparantly switches so rapidly it can appear to be operating in rough/fine correction mode togeather.

their is aparantly a fine learning table FLKC in ecu ram similar to this for wrx



Their is some explanation on this over at www.romraider.com (subaru knock correction) its for WRX but appears to hold true for our ecu's

[solidONE]

Yeah nothing in this las log has me worried, it's how my logs went from looking like this: and this to something like and this with the main change being updating of the OFT.

[Shiv@Openflash]

Originally Posted by AdrianG

So I found a bug with the new update, not a big one though. If I leave the OFT connected in realtime display mode, the next time I start the car it reports IAM of 0 or 0.01... If you tap it though it shows one and then when you go back to the full list it shows as normal.

As I said, not a big bug but I had a chuckle the first time I saw that my IAM was 0...

Thanks for the heads up. We just fixed this (and a few other minor bugs). The updates should be released to all by the morning

Cheers,
shiv

[solidONE]

Originally Posted by steve99

seems to correspond when you get the fLKC, KC learned drops so logging looks ok

http://datazap.me/u/solidone/stg1-20...4&zoom=236-548

Check this out: http://datazap.me/u/solidone/stg1-20...k=983-963-1027

Several spots where there was drop in KC learn without any corresponding FLKC or Knock Correction values...

Everything seems to point to error or problem with the latest OFT update. Not to be a ****, but I would have appreciated a response from @Shiv@Openflash. Thankfully we have @steve99 to help. Shiv really ought to pay you for what you do on this forum for OFT users. Instead, customers like myself get ignored, and he only responds to whatever he feels like. WTF, yo?!

[steve99]

Originally Posted by solidONE

Check this out: http://datazap.me/u/solidone/stg1-20...k=983-963-1027

Several spots where there was drop in KC learn without any corresponding FLKC or Knock Correction values...

Everything seems to point to error or problem with the latest OFT update. Not to be a ****, but I would have appreciated a response from @Shiv@Openflash. Thankfully we have @steve99 to help. Shiv really ought to pay you for what you do on this forum for OFT users. Instead, customers like myself get ignored, and he only responds to whatever he feels like. WTF, yo?!

That does look suspect, i wiil try logging my rom with tactrix and oft and see if it looks ok but i am on a different rom and it may be ok on my rom, wife has "stolen " the car again so might be a while.

try emailing that stuff to shiv at openflash

[solidONE]

FYI I've emailed shiv before without response. Just not about this recent issue.

[GTO5005]

@Shiv@Openflash Hey shiv was able to swap over no problem to the new template, I recently picked a phantom ESC, and I am currently running your 2.0 w/1.5 dump E85 ESC UEL Headers Tune, I'm using your boost monitoring tool but its starting at -8.6 psi at idle rather than around 0 , I thought this just might be off 8 psi, but then I did a few pulls and was getting down to -1.8 psi and I am fairly certain this setup isn't capable of making 6.8 psi, I tried turning the car back off and unplugging to reset a few times, but it didn't, I figured I give you a heads up and see what you thought, could be a bad sensor but I will let you know if anything changes over time

[Shiv@Openflash]

Originally Posted by GTO5005

@Shiv@Openflash Hey shiv was able to swap over no problem to the new template, I recently picked a phantom ESC, and I am currently running your 2.0 w/1.5 dump E85 ESC UEL Headers Tune, I'm using your boost monitoring tool but its starting at -8.6 psi at idle rather than around 0 , I thought this just might be off 8 psi, but then I did a few pulls and was getting down to -1.8 psi and I am fairly certain this setup isn't capable of making 6.8 psi, I tried turning the car back off and unplugging to reset a few times, but it didn't, I figured I give you a heads up and see what you thought, could be a bad sensor but I will let you know if anything changes over time

Since the last update, the boost channel will read negative (vacuum) as well as positive (boost). When on boost, boost readings should be the same as before.

[Shiv@Openflash]

Originally Posted by solidONE

FYI I've emailed shiv before without response. Just not about this recent issue.

I do get a fair share of email so I apologize if yours had gone unanswered before. Please email me again. It might also be a good idea to let me know either your actual name or the name you use on this forum so I know who I'm responding too.

[solidONE]

Originally Posted by Shiv@Openflash

I do get a fair share of email so I apologize if yours had gone unanswered before. Please email me again. It might also be a good idea to let me know either your actual name or the name you use on this forum so I know who I'm responding too.

Looks like the flkc logging problem was addressed on the last auto update.
http://datazap.me/u/solidone/stg1-20...4&zoom=136-480

[Shiv@Openflash]

Originally Posted by solidONE

Looks like the flkc logging problem was addressed on the last auto update.
http://datazap.me/u/solidone/stg1-20...4&zoom=136-480

Great. There will likely be another update son that will apply a few other minor bugs with respect to FLKC and KC Learned. In some cases, the don't immediately reset to 0 in the display screens. So we will be fixing that