b4A4nowA6
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« on: August 22, 2015, 10:18:15 AM »
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2.7t ME7.1.1
OEM RS6 turbos EV14 730cc@4bar
So as the title says. I had my car running "fine" with the stock air box and 73mm MAF. Well I put on a 90mm from a lightning and tried to figure a way to get it into/on the stock air box by cutting somehow.
I ditched that in case I had to put it back to stock. I changed MLHFM based on the interpolator provided from a member here.
I also changed KFKHFM to all 1's (not sure exactly why but that's what I read).
-MLOFS...... Already set to 0 (Hitachi)
-KFMLDMN..... No change because I do not understand these values
-KFMLDMNX.... SAME AS ABOVE
Problem that I have so far is that it is really slow now and hardly boosting. My wideband is not here yet but soon, but my stock O2 says i'm running really rich.
I know that there has to be WAY more that I am missing but I have been working on this car or 6 months and would love to finally just enjoy it. Any help is GREATLY appreciated it
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b4A4nowA6
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« Reply #1 on: August 22, 2015, 10:26:24 AM »
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CATBED said "If you're starting from scratch and not using a stock intake, you're best bet is to set KFKHFM to all 1's. Use the A4/A3 MLHFM and dial in your injectors on part throttle and idle. After your fuel trims are within ~5%, start massaging KFKHFM for various load/RPM points while logging to straighten out MAF readings."
This is the best understanding about the issue that I have.
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nyet
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« Reply #2 on: August 22, 2015, 10:30:12 AM »
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Problem that I have so far is that it is really slow now and hardly boosting. My wideband is not here yet but soon, but my stock O2 says i'm running really rich.
I know that there has to be WAY more that I am missing but I have been working on this car or 6 months and would love to finally just enjoy it. Any help is GREATLY appreciated it
so, are you going to post logs at some point? |
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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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b4A4nowA6
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« Reply #3 on: August 22, 2015, 10:32:23 AM »
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would you like in excel form or a copy of the ECUxPlot image?
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b4A4nowA6
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« Reply #4 on: August 22, 2015, 10:38:08 AM »
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would you like in excel form or a copy of the ECUxPlot image?
I just tried attaching a .csv file but its not loading for some reason. Let me get back to you |
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b4A4nowA6
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« Reply #5 on: August 22, 2015, 10:48:35 AM »
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Lets see if this works
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nyet
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« Reply #6 on: August 22, 2015, 10:57:28 AM »
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Limp. Any codes?
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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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b4A4nowA6
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« Reply #7 on: August 22, 2015, 12:17:47 PM »
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nope
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b4A4nowA6
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« Reply #8 on: August 22, 2015, 12:22:20 PM »
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nope
I lied. p0562 - system voltage low and p1557- positive deveiation |
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b4A4nowA6
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« Reply #9 on: August 22, 2015, 12:43:58 PM »
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I reverted back to my stock MAF and air box. Tool a log for comparison. Here it is.
Thanks for your help, and sorry for posting so much. I can't add attachments when I go to edit a previous post.
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nyet
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« Reply #10 on: August 22, 2015, 02:49:20 PM »
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I lied. p0562 - system voltage low
and
p1557- positive deveiation
Better read up on positive deviation then, don't you think? |
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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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ddillenger
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« Reply #11 on: August 22, 2015, 03:30:46 PM »
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I'd love to hear a full explanation of positive deviation, re: MAF.
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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 experience!
Email/Google chat:
DDillenger84(at)gmail(dot)com
Email>PM
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nyet
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« Reply #12 on: August 22, 2015, 07:17:56 PM »
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I'd love to hear a full explanation of positive deviation, re: MAF.
LOL really? |
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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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b4A4nowA6
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« Reply #13 on: August 22, 2015, 09:22:31 PM »
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Yes, I know that is horrible. I cannot understand why my boost is still so slow. I saw in another post I guy was having similar problems until he changed the axis on kfkhfm,
No as far as the positive the positive deviation goes. If I lower the requested boost to match what i am making then that should cure that issue right?
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nyet
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« Reply #14 on: August 22, 2015, 09:27:48 PM »
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Yes, I know that is horrible. I cannot understand why my boost is still so slow. I saw in another post I guy was having similar problems until he changed the axis on kfkhfm,
How is changing axis data going to get you more boost at 95% dc?
No as far as the positive the positive deviation goes. If I lower the requested boost to match what i am making then that should cure that issue right?
If 95% dc isn't getting you the boost you want (on RS6 turbos no less), you're not going to fix anything continuing to tweak maps. You've got bigger issues. Step back from the car (and ecu) and find a qualified mechanic. |
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« Last Edit: August 22, 2015, 09:29:48 PM by nyet »
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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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