chokee
Jr. Member
Karma: +1/-0
 Offline
Posts: 31
|
 |
« on: July 03, 2015, 11:44:59 AM »
|
|
|
Hello,
trying to tweak a 2007 Canadian Golf 2.0. It is an ME7.1.1 wideband car with 06A906032RF. I have found KRKTE (0x1BCC6) and TVUB (0x149AA). I am trying to find MLHFM.
The only thing that resembles it starts at 0x13B50 but it is reversed and the numbers seem high. Anybody have insight? Thank you kindly. I believe it has a 63mm MAF from factory.
|
|
|
|
« Last Edit: July 03, 2015, 11:47:24 AM by chokee »
|
Logged
|
|
|
|
chokee
Jr. Member
Karma: +1/-0
Offline
Posts: 31
|
|
« Reply #1 on: July 03, 2015, 11:46:59 AM »
|
|
|
File is attached.
|
|
|
|
|
Logged
|
|
|
|
|
ddillenger
|
|
« Reply #2 on: July 03, 2015, 12:13:43 PM »
|
|
|
138D2
129x1
|
|
|
|
|
Logged
|
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
|
|
|
chokee
Jr. Member
Karma: +1/-0
Offline
Posts: 31
|
|
« Reply #3 on: July 03, 2015, 12:34:16 PM »
|
|
|
dd, Thanks. Looks like you got it but I think you are off by a few bytes?  ? The first few cells look off. Maybe I'm doing something wrong. How does this look?: 0x13906 103x1 |
|
|
|
|
Logged
|
|
|
|
chokee
Jr. Member
Karma: +1/-0
Offline
Posts: 31
|
|
« Reply #4 on: July 03, 2015, 12:44:32 PM »
|
|
|
Never mind. 129x1 MLHFM is correct. The first 26 values are negatives but since it is a Bosch MAF sensor, I assume MLOFS offsets it. Thanks again.
|
|
|
|
|
Logged
|
|
|
|
|
tjwasiak
|
|
« Reply #5 on: July 03, 2015, 01:12:13 PM »
|
|
|
I do not think it is using MLOFS as values are in fact negative.
Does it still use 0.1 as factor (to convert into kg/h)?
|
|
|
|
|
Logged
|
|
|
|
|
ddillenger
|
|
« Reply #6 on: July 03, 2015, 01:16:41 PM »
|
|
|
There is no offset, it is factored into the map. Factor is still .1
Map is of course signed (negative offset)
|
|
|
|
|
Logged
|
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
|
|
|
|
tjwasiak
|
|
« Reply #7 on: July 03, 2015, 01:23:32 PM »
|
|
|
Do you know since when Bosch started to use 129x1 MAF linearisation in ME7 ECUs?
Should it still be called MLHFM or MSHFMU?
|
|
|
|
|
Logged
|
|
|
|
chokee
Jr. Member
Karma: +1/-0
Offline
Posts: 31
|
|
« Reply #8 on: July 03, 2015, 01:27:14 PM »
|
|
|
Would I scale this map the same way as a Bosch MAF B5 S4?
|
|
|
|
|
Logged
|
|
|
|
|
tjwasiak
|
|
« Reply #9 on: July 03, 2015, 01:34:15 PM »
|
|
|
Yes but keep in mind you do not have to add/subtract 200kg/h in the beginning/end.
EDIT:
What have you done to this engine so you need bigger MAF housing? Stock should be able to measure up to ~800kg/h...
|
|
|
|
|
Logged
|
|
|
|
chokee
Jr. Member
Karma: +1/-0
Offline
Posts: 31
|
|
« Reply #10 on: July 03, 2015, 01:43:45 PM »
|
|
|
So add 200, so that all numbers are positive, scale the maf up a bit and then subtract 200?
The car has a big snail on it and 440cc injectors.
|
|
|
|
|
Logged
|
|
|
|
|
ddillenger
|
|
« Reply #11 on: July 03, 2015, 02:14:05 PM »
|
|
|
Do you know since when Bosch started to use 129x1 MAF linearisation in ME7 ECUs?
Should it still be called MLHFM or MSHFMU?
It's different in different binaries. The earliest I have seen it in VAG is 2004 in the B5.5, but then the 2005 audis still used 512x1. It's all over the place. In short, I am sorry, I don't have a definitive answer. |
|
|
|
|
Logged
|
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
|
|
|
|
tjwasiak
|
|
« Reply #12 on: July 03, 2015, 02:14:28 PM »
|
|
|
No! To properly scale MAF when "normal" MLHFM is used you have to subtract 200 (MLOFS), multiply by constant depending on area difference between new and old housing, and add 200 (MLOFS). Since here MLOFS is not used you just multiply values. You can always try to find ME7 ECU with same style MAF linearisation from turbocharged engine (it should have bigger MAF housing). EDIT: It's different in different binaries. The earliest I have seen it in VAG is 2004 in the B5.5, but then the 2005 audis still used 512x1. It's all over the place.
In short, I am sorry, I don't have a definitive answer.
And what about proper naming? MLHFM or MSHFMU? Do you know any 1.8T ECU using that type of linearisation? |
|
|
|
|
Logged
|
|
|
|
chokee
Jr. Member
Karma: +1/-0
Offline
Posts: 31
|
|
« Reply #13 on: July 03, 2015, 02:42:36 PM »
|
|
|
Oh yeah sorry I read your post wrong. Other maps I am currently searching for: I will update this post when I find them: KFLBTS [2B0B3] LAMFA KFLAMKRL KFLAMKR KFZW CWKONABG [2A037] CDSLS [2A027 ] CDKAT [2A016 ] CDHSH CDHSHE CDLATV CDLASH CDLSH CLRSHK CLRSKA |
|
|
|
« Last Edit: July 03, 2015, 02:44:11 PM by chokee »
|
Logged
|
|
|
|
|
tjwasiak
|
|
« Reply #14 on: July 03, 2015, 03:00:20 PM »
|
|
|
Keep in mind those addresses are nothing more than "educated guess": - KFZW: 0x11B65 - KFZW2: 0x11C25 Unfortunately it seems those could be only 12x12 maps (...) Other maps I am currently searching for: (...) KFLBTS [2B0B3] LAMFA KFLAMKRL KFLAMKR KFZW CWKONABG [2A037] CDSLS [2A027 ] CDKAT [2A016 ] CDHSH CDHSHE CDLATV CDLASH CDLSH CLRSHK CLRSKA EDIT: LAMFA is easy - 0x1BE90 |
|
|
|
« Last Edit: July 03, 2015, 03:09:29 PM by tjwasiak »
|
Logged
|
|
|
|
|
