07-30-2016, 03:59 PM | #1401 | |
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http://datazap.me/u/tor/1085-100au-r...7&zoom=184-733 IAM 1, no mentionable knock. AFR slightly too rich? Fuel trims have swapped. Before they were high +7 in high rpm. Now they are +6 in low rpm. I am still wondering if the 108.2 MAF scale (non rich, same as OTS MAF) was better for my car and EU fuel (always min E5 due to regulations about renewable energy)? Here for comparison. 108.2 stg 1 98 @28 deg C ambient: http://datazap.me/u/tor/ww1082-stg-1...zoom=1140-1337 IAM = 1, no knock. AFR slightly lean? (does temperature play a role?). Very low fuel trims at all rpm. MAF scale better for power? Could/should I copy that MAF scale over to the Stg. 1 100 AU rich rom?
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07-31-2016, 03:27 AM | #1402 | |
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its rearly quite minor |
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07-31-2016, 01:35 PM | #1403 |
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Ok, thanks guys!
This might be a dumb question, but I thought that OFT automatically logged every sensor. If this isn't the case, does that mean it only logs the values that are displayed on the screen at the time? |
07-31-2016, 03:25 PM | #1404 | |
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it can log about 30 different parameters, but only 14 available to be stored at any one time , ie the ones you see on screen, you need to change these to the ones you want to log |
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07-31-2016, 06:50 PM | #1405 |
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I encountered some weird spiking of my LTFT under part throttle CL operation. The car was up to operating temps as I started the logging. Curious to see if any of you have seen anything like this. Also the Commanded AFR will hold at 15.06 as the throttle is opened right after switching to OL operation at low RPMs. I wonder if this is indicative of the rear O2 sensor going bad.
http://datazap.me/u/solidone/z7-kc1i...1392-1063-1104 http://datazap.me/u/solidone/z7-kc1i...1392-1063-1104 Short log 200 + miles after, same thing: 8.59% LTFT spike: http://datazap.me/u/solidone/z7-kc1i...8220&mark=8032 15.06 Commanded afr after switching to OL: http://datazap.me/u/solidone/z7-kc1i...3608-3918-3925
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08-08-2016, 04:29 AM | #1406 |
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Hi guys,
Hoping that I can get some input on the attached logs. Running completely stock 2015 manual car (D00G ROM) with Stage 1 tune based on Wayno's 107.2 Stg1 98 tables). 2 logs attached: WOT and crusing http://datazap.me/u/fibble/oft-stage...s?log=0&data=1 I am hoping for a second opinion - looks like I am running a little rich and LTFT are a little out. I also have lost a little bit of confidence in OFT's logging on this ROM so am wondering if someone more experienced can run their eyes over it for knock (FLKC, Knock Correction and IAM still don't work on OFT for this ROM). Thx |
08-08-2016, 05:03 AM | #1407 |
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@fibble still waiting on that OFT update for logging, me too..
Getting a bit over it now after several months of asking.. |
08-08-2016, 05:11 AM | #1408 | |
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The Following User Says Thank You to fibble For This Useful Post: | Boomerang (08-08-2016) |
08-08-2016, 05:25 AM | #1409 | |
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There is a little knock around 4600 it runs a little lean just before that, which likely causes it, then higher rpm its running rich, not rearly bad, probably needs a bit of work on maf scale and load limits |
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The Following User Says Thank You to steve99 For This Useful Post: | fibble (08-08-2016) |
08-08-2016, 06:03 AM | #1410 | |
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Next will be a Stg2 UEL on 98. Optimising Wayno's Stg 1 tune is my "development environment" and I am having a bit of trouble without OFT working properly |
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08-08-2016, 07:50 PM | #1411 |
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How is this? I think it looks okay, but not sure about the fine details.
http://datazap.me/u/tor/tor-102-2?lo...zoom=2335-2459 Fuel trims are low, but is it okay with the jump around 5000 rpm? Zooming out I have rather high negative fuel trims during normal driving, it that okay? Is the AFR okay or does it go slightly too rich at high rpm? It's got 125 km since flash. I drove the first 50 km with very deliberate closed loop focus and lots of Vishnu reset pulls. Thereafter normal driving with cruising to and from work (still careful) and some occasional WOT. It's the Wayno 108.5 100 octane tune with OTS MAF and above 3.44 volt AU-rich scale. I have changed the base timing B for slightly more timing in the high rpm (than the 100 octane table) and slightly less below 4400 rpm:
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08-08-2016, 09:16 PM | #1412 | |
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ltft in range of +/-5 is pretty good so its fine. It will move arround a bit more a low rpm and idle as the intake air temps move a lot. Their is a maf/iat compensation table that is supposed to compensate for this but its a bit "off" its probably not worth fiddling with. If the ltft is only off at -7 arround idle , note the maf volts and just reduce the flow numbers in that area by say 5% that will bring it closer to zero |
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08-08-2016, 09:41 PM | #1413 | |
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It's in the 3000 rpm region. Like cruising at low loads. Here ltft -8.44 is the worst: http://datazap.me/u/tor/tor-102-2?lo...&zoom=575-2065 Most explanations about how to look at logs concentrate on WOT 3rd gear pulls, which make somewhat sense now. But what about cruising logs? I suppose the goal is still to have ltft as close to zero here as possible as well?
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08-08-2016, 09:51 PM | #1414 | |
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of if its just in that one particular area just reduce the maf flow numbers 5% in that area trying to keep the curve smooth |
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