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amd is the best
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« Reply #1 on: December 23, 2011, 04:57:37 AM »
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I opened up an RS4 bin using the M-box XDF and it looks like the MLHFM on both files are in the same place. It looks like it contains usable data. What do you think?: Stock Bosch vs. RS4:  Mlofs is 200 also. Just need the KFKHFM values. They must be in a different place because the map comes up all crazy. |
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« Last Edit: December 23, 2011, 05:43:04 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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Rick
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« Reply #2 on: December 23, 2011, 05:43:01 AM »
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KFKHFM values are all 1 on the RS4.
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amd is the best
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« Reply #3 on: December 23, 2011, 05:46:02 AM »
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Thank you Rick.
Just to be certain, you are referring to the RS4 MAF or the RS4 itself? My car is an S4, with an RS4 MAF. Not sure if there's even a difference but I want to make sure.
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2012 Golf TDI
2001 Audi A4 2.8 30v Supercharged
1991 Audi 200 20v
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s5fourdoor
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« Reply #4 on: December 23, 2011, 02:35:13 PM »
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MLHFM corresponds to the RS4 MAF.
KFKHFM would correspond to the RS4 Airbox.
I think that was the point Rick was trying to make.
Are you running a Hitachi or Bosch sensor in the MAF housing. This matters in subtle ways, depending on which you are using.
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amd is the best
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« Reply #5 on: December 23, 2011, 02:41:08 PM »
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I am running the Bosch sensor in the RS4 housing. All oem RS4 components. RS4 Y pipe as well. All came with my APR stage 3.
I am running the RS4 upper air box and a stock S4 lower that has had the bottom cut off of it. Didn't want to cut up the RS4 one.
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2012 Golf TDI
2001 Audi A4 2.8 30v Supercharged
1991 Audi 200 20v
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s5fourdoor
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« Reply #6 on: December 23, 2011, 02:43:08 PM »
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OK, well it sounds like it should be the map you found for MLHFM and all 1's for KFKHFM in addition to the MLOFS of 200 you have already. That should be good enough to move forward to fuel tuning.
Would you please post an excel spreadsheet that has the S4 / RS4 MLHFM tables in them so we can all benefit from your explorations?
Thanks!
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Rick
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« Reply #7 on: December 23, 2011, 03:31:24 PM »
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I've done many tunes with RS4 MAF. It's the only one to use IMO.
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s5fourdoor
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« Reply #8 on: December 23, 2011, 03:53:56 PM »
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Rick - Do you use the A-box Bosch sensor or the RS4 bosch sensor it comes with? Does this even matter?
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Rick
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« Reply #9 on: December 23, 2011, 06:17:45 PM »
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I use the complete RS4 housing and sensor, the sensor is different, you can't use the S4 Bosch sensor.
Rick
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nyet
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« Reply #10 on: December 24, 2011, 12:35:08 PM »
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I've done many tunes with RS4 MAF. It's the only one to use IMO.
Not always. The hitachi MAF is more reliable, and getting it into a different housing isn't difficult. |
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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 #11 on: December 24, 2011, 12:59:15 PM »
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The hitachi sensor is more reliable the the stock S4 Bosch sensor however the Bosch RS4 sensor is just as reliable as the hitachi (from what I understand). Used in Allroads, B6 and B7.
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« Last Edit: December 24, 2011, 02:37:54 PM 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 #12 on: December 24, 2011, 07:28:23 PM »
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Would you please post an excel spreadsheet that has the S4 / RS4 MLHFM tables in them so we can all benefit from your explorations?
Thanks!
Attached!  |
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2012 Golf TDI
2001 Audi A4 2.8 30v Supercharged
1991 Audi 200 20v
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Matt Danger
Full Member
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« Reply #13 on: December 27, 2011, 11:47:38 AM »
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I've done many tunes with RS4 MAF. It's the only one to use IMO.
Not always. The hitachi MAF is more reliable, and getting it into a different housing isn't difficult. Does anyone have a MAF scaling for the Hitatchi in the RS4 housing? |
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krunok
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« Reply #14 on: December 29, 2013, 05:55:27 AM »
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Attached! Thank you for posting this! In this Excel max value for S4 sensor in MLHFM table is 1407,3 kg/h while S4wiki states 1213,1 kg/h. Which value is correct? http://s4wiki.com/wiki/MAFI am looking for a HFM5 sensor that can support 1400 kg/h in 73mm housing. Can it be done with S4 OEM sensor or I need RS4 sensor in 73mm housing? EDIT: ok, I got it, it's probably the 200 offset that makes the difference. Has anybody tried running RS4 sensor in 73mm housing? As RS4 sensor is making 1793kg/h in 83mm housing it should make app. 1392 kg/h in 73mm housing. Has anybody tried it? Is there a calibration table for that combo? |
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« Last Edit: December 29, 2013, 06:50:55 AM by krunok »
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