hipeka
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« on: November 17, 2012, 12:46:29 PM »
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I have tried to make my car run better mpg reading for a while without success.
Tried advanced timing, change kfmirl and kfmiop maps back anf forth, chanced kfldimx and other little mods read from this forum.
No luck so far.
Is there some easy way to do this?
Here is ori file of that ecu
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« Last Edit: November 22, 2012, 12:55:46 AM by hipeka »
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phila_dot
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« Reply #1 on: November 17, 2012, 01:00:42 PM »
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More timing is better than not enough, but there is a point where MPG will start declining again.
What are you trying to do with KFMIRL? Lower target load for a given torque request?
Myself and elray have both posted how to run Lambda greater than 1.
Specific constants in the ECU need to be found and changed to allow it.
Are you ME7.5 wideband?
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hipeka
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« Reply #2 on: November 17, 2012, 01:31:39 PM »
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One local tuner said that messing miop/mirl maps will make poor mpg reading so i assume that you can make it also opposite way. So modifying those maps will effect mpg readings positively.
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« Last Edit: November 22, 2012, 12:48:24 AM by hipeka »
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prj
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« Reply #3 on: November 17, 2012, 01:33:35 PM »
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KFMIRL is not going to help you.
If you are so worried about economy buy a diesel...
The only thing you can do is run lambda 1.05 or so (1.1 is too lean) and dial in your timing to MBT on a dyno.
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hipeka
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« Reply #4 on: November 17, 2012, 01:44:02 PM »
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What is proper way to tune kfmirl? Italian tune or just few last colums?
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« Last Edit: November 22, 2012, 12:50:30 AM by hipeka »
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phila_dot
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« Reply #5 on: November 17, 2012, 02:56:04 PM »
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KFMIRL converts the torque request for air charge, milsol_w, to target load. That's it. Tune it accordingly. This is the thread that I put together: http://nefariousmotorsports.com/forum/index.php?topic=2515.0My research was based on ME7.1 narrowband M box ECU, so it doesn't directly apply to your ECU. |
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« Last Edit: November 17, 2012, 02:59:15 PM by phila_dot »
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hipeka
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« Reply #6 on: November 18, 2012, 02:21:25 AM »
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« Last Edit: November 21, 2012, 03:00:49 PM by hipeka »
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elRey
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« Reply #7 on: November 18, 2012, 12:23:59 PM »
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You can't find it via WinOLS. Please post ori.
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hipeka
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« Reply #8 on: November 18, 2012, 02:32:55 PM »
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« Last Edit: November 21, 2012, 03:01:16 PM by hipeka »
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nyet
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« Reply #9 on: November 18, 2012, 02:41:15 PM »
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I'm confused. What makes you think you can get significantly better mileage than what the car was originally tuned for, outside of tweaking LAMFA and turning off SAI?
If you can't afford the gas, don't drive the car.
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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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hipeka
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« Reply #10 on: November 18, 2012, 03:15:16 PM »
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I'm confused. What makes you think you can get significantly better mileage than what the car was originally tuned for, outside of tweaking LAMFA and turning off SAI?
If you can't afford the gas, don't drive the car.
Ok. So you saying i am stupid? Yes i might be because i want more power and better fuel economy, not just more power. Is that what you want to say? I just want better fuel economy because i have seen it is possible with same base motor that i have. For some reason this AWT engine type seem to eat lot more gas then AEB or BEX. |
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« Last Edit: November 18, 2012, 09:44:17 PM by hipeka »
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lulu2003
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« Reply #11 on: November 19, 2012, 01:53:54 PM »
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nyet, I do not agree.
why wasting money for fuel, even if you _can_ affort it?
I do think it is smart, even if your catalytic converter cannot work perfectly anymore.
hipeka, check your LAMFA map. you can mess that to be too rich during normal drive due to that "bug" with the load axis.
all, does every ME7 or even MED9 have this hardcoded "1" Lambda?
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hipeka
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« Reply #12 on: November 19, 2012, 02:01:17 PM »
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« Last Edit: November 21, 2012, 03:01:31 PM by hipeka »
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jibberjive
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« Reply #13 on: November 19, 2012, 11:30:41 PM »
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I have noticed a trend that certain injectors tend to be able to eek out better gas mileage than others, when tuned correctly. This is probably because of relatively better fuel control at idle compared to other similarly large injectors, and better atomization (maybe the spray angles are better for the Audi tumble ports as well?). I've gotten 27mpg on the highway with 1000cc Bosch EV14's, without any of the fuel saving tweaks mentioned here.
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hipeka
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« Reply #14 on: November 20, 2012, 09:47:04 PM »
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« Last Edit: November 21, 2012, 03:01:49 PM by hipeka »
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