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nyet
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« Reply #15 on: January 28, 2018, 01:22:28 AM »
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Log psmx_w, rlroh_w, rl_w, fvisrm_w, psagr_w and back track from there based on which one (if any) is freaking out.
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ME7.1 tuning guideECUx PlotME7Sum checksumTrim heatmap toolPlease do not ask me for tunes. I'm here to help people make their own. Do not PM me technical questions! Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your ex
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amd is the best
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« Reply #16 on: January 28, 2018, 07:55:28 AM »
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Log with MAF attached here.
psmx_w, fvisrm_w and psagr_w are not in my ECU/CFG files. I'm not sure if they are easy to locate or in the same location as other files. Let me know how to proceed there. I've added rlroh_w so that will be included in the logs following.
I also thought that maybe it was my implementation of 5120 but yesterday I completely reverted it back to stock and tested with no change in ps_w.
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« Last Edit: January 28, 2018, 08:35:28 AM by amd is the best »
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2012 Golf TDI
2001 Audi A4 2.8 30v Supercharged
1991 Audi 200 20v
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amd is the best
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« Reply #17 on: February 01, 2018, 04:47:35 PM »
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So I have figured out and resolved the ps_w issue. I had tampered with MLMAX thinking it was necessary to insert the RS4 value when using an RS4 MAF. Oops. At least that has been resolved.
Lambda control is still cutting out though. So back to the original topic. What can cause B_lr to drop out and why?
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2012 Golf TDI
2001 Audi A4 2.8 30v Supercharged
1991 Audi 200 20v
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amd is the best
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« Reply #18 on: February 01, 2018, 04:59:45 PM »
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I think I just found something in common between all my logs, it seems lambda control (B_lr) is consistently dropping right around 173 load +/- 3.
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2012 Golf TDI
2001 Audi A4 2.8 30v Supercharged
1991 Audi 200 20v
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prj
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« Reply #19 on: February 01, 2018, 05:11:01 PM »
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All this time and you don't know that closed loop is turned off whenever BTS is active?
For good reason too, so a faulty lambda doesn't blow up your engine.
Tune correctly, so your lambda correction is within 2%.
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amd is the best
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« Reply #20 on: February 01, 2018, 05:49:14 PM »
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I have pushed BTS up to temporarily disable it for testing. In the most recent runs I have verified that BTS has been disabled and lambda control is still dropping out. Of course my plan is to ensure I’m tuned as close as possible to target but when lambda control drops it quickly leans out which I don’t like.
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2012 Golf TDI
2001 Audi A4 2.8 30v Supercharged
1991 Audi 200 20v
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nyet
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« Reply #21 on: February 01, 2018, 09:03:41 PM »
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All this time and you don't know that closed loop is turned off whenever BTS is active?
Actually I did not know this, since I haven't done much wideband ME7 tuning compared to NB. Thanks for the info. The rationale definitely makes sense. |
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ME7.1 tuning guideECUx PlotME7Sum checksumTrim heatmap toolPlease do not ask me for tunes. I'm here to help people make their own. Do not PM me technical questions! Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your ex
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amd is the best
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« Reply #22 on: February 03, 2018, 07:06:56 AM »
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So it looks like I was fighting a non-issue the whole time. I was under the impression that wideband cars constantly had lambda control operating. Certainly makes sense though.
Thanks guys.
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2012 Golf TDI
2001 Audi A4 2.8 30v Supercharged
1991 Audi 200 20v
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SB_GLI
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« Reply #23 on: February 03, 2018, 07:39:43 AM »
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All this time and you don't know that closed loop is turned off whenever BTS is active?
Hmmm. I feel like I have data that says otherwise. Are you saying when b_lambts = 1, fr_w = 1? |
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« Last Edit: February 03, 2018, 09:22:21 AM by SB_GLI »
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SB_GLI
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« Reply #24 on: February 03, 2018, 07:45:15 AM »
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Perhaps a misunderstanding of what prj was saying, but I am looking at my logs from my mkiv right now. I don't log b_lambts, but lambts_w != 1 and fr_w is still active on WOT.
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