Data Logs! Post them here.

[sav]

Odd, you should be able to open it with Excel.

[sav]

[steve99]

Originally Posted by trdric

ya i tried opening that thing. this is what i got

did you unzip it first ??
then should open in excel

values below for AFE Takeda intake
will get you going but will need some adjustment to get it spot on



Volts Flow [Table2D]
0.90 0.85
0.94 1.14
0.98 1.32
1.02 1.63
1.05 1.81
1.09 2.07
1.13 2.30
1.17 2.59
1.21 2.91
1.25 3.28
1.29 3.57
1.33 3.92
1.37 4.25
1.41 4.60
1.45 5.02
1.48 5.53
1.52 6.22
1.56 6.56
1.60 7.30
1.64 8.04
1.68 8.46
1.72 9.21
1.76 9.96
1.80 10.67
1.84 11.53
1.88 12.51
1.91 13.43
1.95 14.28
1.99 15.19
2.03 16.34
2.07 17.13
2.11 18.03
2.15 19.25
2.19 20.99
2.23 21.96
2.27 23.61
2.30 25.00
2.34 26.01
2.38 27.77
2.42 29.28
2.46 30.51
2.50 32.44
2.58 35.83
2.77 44.93
2.97 52.63
3.20 67.31
3.44 84.04
3.71 107.81
3.91 129.06
4.06 141.59
4.30 169.31
4.49 197.00
4.73 234.25
5.00 290.26

[trdric]

yup i got it idk why it opened in word at 1st.... anyway i got to switch back to 91 oct to scale my maf and once that is done I apply the maf correction to the e85 tune right?

[steve99]

Originally Posted by trdric

yup i got it idk why it opened in word at 1st.... anyway i got to switch back to 91 oct to scale my maf and once that is done I apply the maf correction to the e85 tune right?

After you do maf scaling
Check you ltft are not greater than 10% on E85 or about 5% on petrol
and check Commanded AFR and AFR are following each other fairly closely

[alpax]

Hi everybody.
Could you please have a look at my log (just cruising around the block with a couple of 2nd gear pulls):
http://datazap.me/u/alpax/brz-jrsc-2...g=0&data=2-4-5

Those fuel trims look really scary!

I'm running Jackson Racing SC with standard CARB tune, and have been trying to find an issue with my setup for a while already. Several times I got P0172 fault code, started logging fuel trims data, and found that LTFT is always too low. Fixed one possible vacuum leak a couple days ago, but it didn't seem to change anything.

Any ideas where to look and how to fix that?
Thanks in advance.

[Kodename47]

Originally Posted by alpax

Hi everybody.
Could you please have a look at my log (just cruising around the block with a couple of 2nd gear pulls):
http://datazap.me/u/alpax/brz-jrsc-2...g=0&data=2-4-5

Those fuel trims look really scary!

I'm running Jackson Racing SC with standard CARB tune, and have been trying to find an issue with my setup for a while already. Several times I got P0172 fault code, started logging fuel trims data, and found that LTFT is always too low. Fixed one possible vacuum leak a couple days ago, but it didn't seem to change anything.

Any ideas where to look and how to fix that?
Thanks in advance.

The fuel trims only look excessive around idle which I personally wouldn't worry about, they are all negative so you seem to be running richer which isn't a bad thing. Hopefully the -7% on WOT isn't an issue but without an AFR reading it's hard to tell

Taken from another site:
Running too rich – High negative fuel trim corrections can be caused by MAF sensor problems, high fuel pressure, leaking fuel pressure regulator diaphragm, faulty evaporative emissions components, leaking injectors, defective O2 sensors, exhaust leaks/pinholes before the O2 sensor, coolant temp sensor problems, and base engine issues such as low compression and incorrect camshaft timing.

[alpax]

Originally Posted by Kodename47

The fuel trims only look excessive around idle which I personally wouldn't worry about, they are all negative so you seem to be running richer which isn't a bad thing. Hopefully the -7% on WOT isn't an issue but without an AFR reading it's hard to tell

Thank you for your opinion!
Yes, idle is where they are way off.
The AFR and other data is actually there, just disabled in the graph. Can you see it? AFR was 12.17 on WOT.
Actually LTFT seems to be getting further down. I believe yesterday it was around 0 under load. I will keep monitoring.

My car has got 20K km on the odometer, about 5K with SC. I still consider it almost new, so I guess normally it shouldn't have issues with MAF, O2, or exhaust leaks, or anything might have happened?

[Kodename47]

Originally Posted by alpax

Thank you for your opinion!
Yes, idle is where they are way off.
The AFR and other data is actually there, just disabled in the graph. Can you see it? AFR was 12.17 on WOT.
Actually LTFT seems to be getting further down. I believe yesterday it was around 0 under load. I will keep monitoring.

My car has got 20K km on the odometer, about 5K with SC. I still consider it almost new, so I guess normally it shouldn't have issues with MAF, O2, or exhaust leaks, or anything might have happened?

It's more than likely that the tune is designed to run rich and then let the LTFT bring it in line. Don't forget that the LTFT isn't set across the board, but in MAF g/s regions, which is why the LTFTs vary so much in the log. If the LTFTs were all negative below -10% then I'd start looking for issues.

Your front O2 sensor isn't scaled below 12.17 which is why it's pegged there, it's likely richer which is fine.

[JB86'd]

http://datazap.me/u/joshbustos86/206...4-7-9-10-12-14

recent datalog..just some spirited driving around town. OFH OFT 91 octane

[Koa]

Originally Posted by JB86'd

http://datazap.me/u/joshbustos86/206...4-7-9-10-12-14

recent datalog..just some spirited driving around town. OFH OFT 91 octane

looks good on the knock side.. running very rich, I'd aim for high 11's to very low 12s on good 91

[JB86'd]

Originally Posted by Koa

looks good on the knock side.. running very rich, I'd aim for high 11's to very low 12s on good 91

I wouldn't say Socal 91 is any good..I've already pulled timing to reduce knock. Going leaner may induce some knock if I'm right on the threshold no?

[Koa]

Originally Posted by JB86'd

I wouldn't say Socal 91 is any good..I've already pulled timing to reduce knock. Going leaner may induce some knock if I'm right on the threshold no?

True true true.. Forgot to ask if you've backed off and added some richness.. were you knocking from tip in or actual advance/preignition or both?

[Bergen23]

Originally Posted by steve99

just a thought are you on the latest ofm as per the downlads site ?

if so the just log KC LEARNED instead of say short term fuel trim and we can derive the IAM and FLKC from that Will also keed to know what tune your on and if you could post up you KNOCK CORRECTION MAX A table as kc learned should match knock correction max a table if iam is 1 and no flkc in your log.

Here's my latest log. Logged KC Learned. What is the Knock Correction Max A Table?

http://www.datazap.me/u/colekmiecik/...log=0&data=1-5

Edit: The OpenFlash guys still haven't gotten back to me about the logging issues after they asked me to update to the latest software and I told them I did that already. Honestly thinking of just ditching the OFT and running the factory tune.