NefMoto

Vehicles => Vehicle Tech => Topic started by: Rick on June 24, 2011, 02:18:39 PM



Title: ME7 vs ME9
Post by: Rick on June 24, 2011, 02:18:39 PM
I'm pretty clued up on ME7, but never worked with ME9.

Can anyone explain the fundamental differences?

Rick


Title: Re: ME7 vs ME9
Post by: RaraK on June 25, 2011, 09:53:16 AM
i have been starting to dig into it, i have yet to get a tune flashed in though.  I will gladly share what i find once i get to that point.  I hope to start flashing soon once i get a BDM read.


Title: Re: ME7 vs ME9
Post by: thom337 on June 25, 2011, 01:01:48 PM
Fairly similar in concept...some nitty gritty details are different though. As far as the torque model goes, it must be expanded for different modes of operation which the 2.0T is capable of. This includes charge flap movement combined with camshaft adjustment + multiple injection modes (Lean charge, split charge, anti-knock, etc, etc). Also, injections are no longer made over a constant pressure differential (like a boost referenced FPR in ME7). This introduces some complexities with pump pressure demand and calculating your fueling overhead because it is RPM dependent due to the fixed displacement HPFP. Just start reading and reading...thats honestly a million times better than someone laying out a half-assed tuning guide without people actually understanding the concepts behind it.


Title: Re: ME7 vs ME9
Post by: msundercober on June 25, 2011, 11:50:13 PM
i have been starting to dig into it, i have yet to get a tune flashed in though.  I will gladly share what i find once i get to that point.  I hope to start flashing soon once i get a BDM read.

you need a bdm read from your own car or would any bdm read do the trick ?


Title: Re: ME7 vs ME9
Post by: setzi62 on June 26, 2011, 04:26:17 AM
For anyone going beyond changing maps and starting to look into the code itself,
the main difference is that MED9 is based on the MPC5xx CPU while ME7 was on the
good old C167. That are two different worlds for those wanting to disassemble code.


Title: Re: ME7 vs ME9
Post by: RaraK on June 26, 2011, 01:46:18 PM
i have been starting to dig into it, i have yet to get a tune flashed in though.  I will gladly share what i find once i get to that point.  I hope to start flashing soon once i get a BDM read.

you need a bdm read from your own car or would any bdm read do the trick ?

Well i got a MPPS read, that is in the original file section, i want a bdm read as it gets EVERYTHING that is writable...supposedly.  Then if i mess anything up along the way, i can recover totally.


Title: Re: ME7 vs ME9
Post by: matchew on June 26, 2011, 02:19:08 PM
Only the flash (2meg) is writable over OBD on these ECU's

BDM wont yeild anything useful to you.


Title: Re: ME7 vs ME9
Post by: msundercober on June 26, 2011, 03:09:57 PM
with BDM you get e² too ... useful if you want to recover


Title: Re: ME7 vs ME9
Post by: matchew on June 26, 2011, 04:16:36 PM
with BDM you get e² too ... useful if you want to recover

I'm well aware of what you get with a BDM read....


Title: Re: ME7 vs ME9
Post by: Rick on June 27, 2011, 02:21:58 AM
I was actually thinking ME9, rather than MED9.

MED9 would come next, but I want to learn about ME9 port injection as used in for example the Ford/Volve I5 engines.

Rick


Title: Re: ME7 vs ME9
Post by: judeisnotobscure on July 05, 2011, 01:38:47 PM
I'm about to dive into med9 as well... I know i can get an mpps read but I don't want to flash until i get a bdm read for reasons stated above... I'm not sure you can get an mpps read on a b8 s4 though, at least with the clone that I have... i have both b8 a4 and s4 access, so any info regarding an obd read for a b8 s4 would be helpful.


Title: Re: ME7 vs ME9
Post by: silentbob on July 05, 2011, 10:35:50 PM
B8 S4 is not ME9. It's not even Bosch  ;)


Title: Re: ME7 vs ME9
Post by: vwaudiguy on July 06, 2011, 08:50:13 AM
Can you tell us anything else, Bob?


Title: Re: ME7 vs ME9
Post by: silentbob on July 06, 2011, 01:28:28 PM
The ECU is Simos84. I think the only company that offers a tune for it is APR. I could tell a lot about it but I'm not allowed to  ;)


Title: Re: ME7 vs ME9
Post by: nyet on July 06, 2011, 06:12:42 PM
The ECU is Simos84. I think the only company that offers a tune for it is APR. I could tell a lot about it but I'm not allowed to  ;)

IOW the state of the art will be delayed for another 10 years, just like ME7.

Ridiculous. Guess what. This time i'm not spending 5 years of my life decoding it w/o tuner help like i did for ME7 :P


Title: Re: ME7 vs ME9
Post by: TTQS on July 09, 2011, 10:22:38 AM
Is a ME9 funktionsrahmen in anyone's possession (amateur or pro tuner?) that we know of?

I wouldn't bother with it unless someone kindly made one available to us. Too much heartache.

Doug


Title: Re: ME7 vs ME9
Post by: RaraK on July 11, 2011, 08:46:19 PM
Is a ME9 funktionsrahmen in anyone's possession (amateur or pro tuner?) that we know of?

I wouldn't bother with it unless someone kindly made one available to us. Too much heartache.

Doug

They are available....


Title: Re: ME7 vs ME9
Post by: vwaudiguy on July 12, 2011, 11:43:21 AM
^^ So where's it at?  ;D


Title: Re: ME7 vs ME9
Post by: RaraK on July 12, 2011, 08:14:14 PM
Well to be honest....I would not be comfortable posting anything in a public forum.  I DO NOT want to burn bridges if you know what i mean. 


Title: Re: ME7 vs ME9
Post by: vwaudiguy on July 12, 2011, 08:26:06 PM
I totally understand, and agree with you. Keep in mind pm may be a good way to spread the wealth and get some help sorting through stuff.  :)


Title: Re: ME7 vs ME9
Post by: TTQS on July 13, 2011, 09:35:42 AM
Yeah, PM us please RaraK!

Doug


Title: Re: ME7 vs ME9
Post by: diagnosticator on July 25, 2011, 10:22:20 AM
Yeah, as usual, the boys in the club get the goods, and everyone else is left out in the cold.

It's really hard to learn anything like this. The culture of information denial with ECU knowledge is well established to the point no one "feels comfortable" talking about how to obtain the really crucial information sources. The US CIA can't do better keeping a lid on stuff.


Title: Re: ME7 vs ME9
Post by: nyet on July 25, 2011, 10:34:04 AM
Same old song and dance. The "pro" tuning culture is a joke.


Title: Re: ME7 vs ME9
Post by: RaraK on July 25, 2011, 03:08:18 PM
Cry babies.


Title: Re: ME7 vs ME9
Post by: RaraK on July 25, 2011, 03:19:35 PM
im crying too now i guess, i cannot get an upload, session timeout.  So....Tony want to try and fix this so i can share?


Title: Re: ME7 vs ME9
Post by: RaraK on July 25, 2011, 03:32:25 PM
Put it on megaupload, its over in the tuning section too

http://www.megaupload.com/?d=XJE3TRB4 (http://www.megaupload.com/?d=XJE3TRB4)


Title: Re: ME7 vs ME9
Post by: nyet on July 25, 2011, 04:15:18 PM
Cry babies.

Question: when was the first time you saw, say 'KRKTE' google-able? What site did it point to?


Title: Re: ME7 vs ME9
Post by: RaraK on July 25, 2011, 04:18:17 PM
Cry babies.

Question: when was the first time you saw, say 'KRKTE' google-able? What site did it point to?

I was fortunate enough to have a friend in the calibration industry, but thanks for your hard work on your wiki.

that comment was supposed to be joking btw ;)


Title: Re: ME7 vs ME9
Post by: Rick on August 03, 2011, 02:51:09 PM
Nyet,

slightly off topic, but where did you get your original info from?

Rick


Title: Re: ME7 vs ME9
Post by: nyet on August 03, 2011, 03:57:35 PM
5 years of reverse engineering based on logging, no funktionsrahmen. no help from tuners (they all wanted promises i would keep things quiet), and the A6 2.7t and RS4 damos which I bought, on my own dime... my mbox information is built entirely from that by hand by searching for matching patterns in the binary.

Only *one* tuner freely gave me information after I told him I would keep nothing secret.

The rest were stuck in their bizarro masonic handshake chiptuners.org world.

It was very very hard refusing "encumbered" information.


Title: Re: ME7 vs ME9
Post by: Jason on August 04, 2011, 10:20:28 AM
I remember seeing posts on douchebagworld.com waaaay back in the day where people were making fun of nyet for "babbling about made up words lie KRIQEL and QUEMR" and "not offering anything significant in regards to tuning".

Little did these guys know how significant his contribution would be.


Title: Re: ME7 vs ME9
Post by: nyet on August 04, 2011, 10:39:15 AM
that comment was supposed to be joking btw ;)

Sorry man, I'm still bitter over a lot of what happened :)

I'm still getting over it... and seeing this forum flourish has definitely boosted my spirits.


Title: Re: ME7 vs ME9
Post by: Snow Trooper on August 04, 2011, 11:50:08 AM
I remember seeing posts on douchebagworld.com waaaay back in the day where people were making fun of nyet for "babbling about made up words lie KRIQEL and QUEMR" and "not offering anything significant in regards to tuning".

Little did these guys know how significant his contribution would be.


I remember the first part happening in jest by people like myself who were enthusiastically watching his progress hoping for a day when we to could get in on the me7 stuff.

The second part however I dont recall anyone with a clue ever saying.  from day one he has been involved with homebrew stuff.


Title: Re: ME7 vs ME9
Post by: RaraK on August 05, 2011, 08:27:47 AM
that comment was supposed to be joking btw ;)

Sorry man, I'm still bitter over a lot of what happened :)

I'm still getting over it... and seeing this forum flourish has definitely boosted my spirits.

Yea its pretty weak its always been so hush hush, i never really shared info just due to the fact it was money in my pocket, as a college student at the time, struggling single father, etc..... I needed the money.  Which I think most of you can understand.

Now i make enough money to survive, yet not enough really, but you know, im willing to share an amount of information.  More or less to break up the tuning scene a little if i can and get some people on the track to tune their own car's.

I wish it were more like GM tuners or european(country) tuners where i could take my car to a local tuning specialist with my "xyz companies tune" and have them tweak it a little if need be, or something along those lines.  We dont really have this option in america, which is a shame.  We are breaking those boundries every so slowely though :)


I dont have a website, i dont advertise, i just go word of mouth locally, and help people out for an extremely fair price(my time or trade for services) and thats that. 

I just tuned a car for a local passat owner, who heard of me through a BMW friend of mine.  I basically gave him a total walkthrough and crash course on how i tuned his car, showed him maps, showed him WHY i change maps.  We ran into some slight jerkiness in the tune in a few spots, showed him why and how i fixed it.  The guy was really excited about that, and he is an GM head, and has tuned his camaro himself.  So he was really into it, and understood it to a point.  Which is nice, and made me feel good i guess. 

Hope this MED9 gets some guys going, I think releasing this now is a positive step, as these MK5 guys are kinda at the point where i was with ME7 way back when with my mk4.  So break out early, rather than wait 10 years for the information to become public, they only had to wait 5 :P