NefMoto

So you want to launch like the cool Subaru/Evo kids? As it turns out we can! And it's pretty easy. It works like this.. ME7 has a bulit in raised rev limit function which is unused by default. We set it up so the standard rev limit (NMAX) becomes the launch rpm and the raised limit becomes the normal limiter. It's controlled by VNMX so that as long as the car is below 1.25 km/h the launch control limit is used. Above 1.25 km/h the raised limit aka the new normal limit is used.

Here are the maps I modify including their M-Box addresses

CWNMAXMD (8-bit) Codeword Drehzahlbegrenzung Set to 1

VNMX             (1157E)     The vehicle speed for activating the raised (normal) rev limit. We set this as low at it goes (1.25 km/h) so the launch control shuts off as soon as you start moving off the line.
DNMAXH         (16304)     This is the RPM above rev limit when the fuel cut comes on. Tweaking this helps make more boost on the limiter. I use 50 RPM  (Keep in mind the maximum RPM limit is NMAXOG + DNMAXH)      
ITNMXH          (16308)     Dwell time under lower limit before activating the upper limit. We set this to 0 seconds
NMAX             (1630A)     Ends up being the launch RPM. I've found 4500 RPM works well.
NMAXOG         (16312)     This is the raised RPM limit which becomes the standard limit. Mine is set at 7100 RPM
TMOTNMX       (16316)     Coolant temp for activating raised (normal) rev limit. We set this at -48 so that it can activate at any coolant temp.
TNMXH           (1631A)     This is the time duration of the raised (normal) rev limit. We set this at it's maximum value of 655.3500 seconds. I haven't had a problem yet with this and have been testing for months.

And here are the results! http://vimeo.com/14266421 (http://vimeo.com/14266421)

Eventually the plan might be to make this into a self installing patch file like the Subaru guys use.

I just uploaded a Stock M-box with this code http://nefariousmotorsports.com/forum/index.php?topic=152.0 (http://nefariousmotorsports.com/forum/index.php?topic=152.0)

Additional IMPORTANT Info!

Be aware that when using this method of launch control there is a time limit of 10.9 minutes for driving above the launch RPM. Therefore I suggest you set this appropriately high, somewhere above your normal cruising range. After 10.9 minutes the throttle shuts off until the RPM falls below the launch RPM... This is a potentially hazardous condition so please be aware and implement this code at your own risk!

Additional additional info

Thanks to k0mpresd I've learned certain ECU's need the map CWNMAXMD (8-bit) Codeword Drehzahlbegrenzung (Codeword for RPM limiter) changed from 0 to 1

-Brandon

EDIT: Correction the map is DNMAXH not DNMAX

Great info. Can't wait to try this out.

On a similar, but different subject.... is there a way to cure/reduce rev hang when switching gears?

wow... amazing work man!

Nice work! Thanks for sharing

what's the longest you've cruised for with that active? I kept having problems with bumping the secondary limit on 3hr+ drives.

can someone help me locate vnmx? please?  :)

edit: i found it. 11afc it looks like.

edit again: is vnmx 8 or 16 bit? im assuming 8.

I haven't had any trouble with it set at 4500 RPM. You'd have to be cruising at some really high speeds for about 11 minutes. Just curious what happens when you exceed the time limit? I'd assume the ECU cuts fuel and spark until the RPM is below the raised limit.


Yep its 8 bit.

this is what i came up with, though im not sure its 100% correct, and i still dont know about the 2nd to last value.

4b0 906 018ch

Here is what I came up with for 4B0 906 018 CH

VNMX        11AFB   8bit
DNMAXH     16494 16bit
ITNMXH     16498  16bit
NMAX        1649A  16bit
NMAXOG    164A2  16bit
TMOTNMX  1F9EA   8bit
TNMXH      164A6  16bit

thank you !!

i set the limiter to 2500 (10000 in decimal) and the car still revs as freely as normal. no 2500 limiter. me = ??? lol.

ok. so this does not work for me. the only way i get a 2500 limiter is if i set all 3 limiters to 2500. its either all or nothing. i tried every combination i could think of using a lower and higher limiter.

working:

http://www.youtube.com/watch?v=nDHxPhNPE8s

What ended up being the issue?

I would try DNMAXH set to 0 as I don't feel it's even hitting the fuel cut

a bit at 11aeb. in my file its set to 00. my friend was looking through an rs4 file and said that it was set to 01 in that file. he said try setting it to 01. im not sure how he came to that conclusion but it worked.

Codeword Drehzahlbegrenzung it looks like is what it is. codeword for speed limit according to google translate.

Original vid is gone :(

OK, I'm a NOOB to the ECU tuning scene. How exactly do you activate the launch control? ie: I'm in rush hour traffic, will I be able to drive stop/go as normal or will it rev to 4.5K and take off at any moment? ;D

In this case the launch control is always active. It doesn't "throttle" for you; it's simply a rev limiter that's "on" when the vehicle speed is below 1.some mph. I would not affect you daily driving whatsoever unless you're a 6K clutch dumper loose canon when you're on your way to work ;)

New link up!


He can always set it to launch at 6000 RPM!

Original post updated with new info and now a disclaimer.

Anyone know if i need to change all the same values on 8D0907551A??I'm assuming yes???I am using Tunerpro at the moment.I am unable to locate CWNMAXMD anyone else have this issue???

s4 files dont seem to have the codeword bit.

Out of interest is this possible on this ECU? 1.8T so do appreciate it is different.

Fantastic work guys :D

Yes.

after these changes does the checksum need to be corrected or no?????

You need to update checksums after any change to the flash memory.

just for the sake of asking, what if winols says the data to be changed is outside of the protected memory area and is not covered by a chksum?

It's possible that a block of data in the flash memory is not covered by one of the three different types of checksums. But if you don't update a checksum when you need to, your car won't start. Worst case your car will start a few times, and then will decide to not start at some later date. One of the types of checksums is only checked every few starts.

Anyone know where all this is on a 8d0907551a???I tried comparing using a mbox defenition file however.I believe its all in different place on abox ecu.

When we talk about revlimiters in ME7 most interesting part is how to made "normal" revlimiter like on old VAG cable throttle cars, i.e fuel/ignition cut without throttle shut off, if we put DNMAXH to 0 its start some fuel cut off, but throttle still shut off and its almost useless, anyway i think about to disable torque model and see whats going on but still dont try that, may be soon when i have free time to play :)

when you disable torque model, set correct the throttle linearization 16x1 map, elsewhere you will idle at 2300 rpm

;)

hmm yes, setting the launch rpm is nice and all but i really think we need to find a way for the throttle to stay open, or at least keep bouncing the limiter rather than the PI controller for the throttle taking over and just holding the rpm.

could get a decent 2step at that point.  i have been playing with this a bit, not letting fuel cut ever come on, but you need to keep the limiter bouncing with throttle being open for it to build some real boost. 

anyone have thoughts on where to go at this point?  i know why it wont let me, but how to work around this and not really affect a lot of other protection in the ecu.

My car seems to bounce the limiter just fine... I don't think the throttle is closing. This is with the limiter set to 4500.  I haven't stood on it long enough to see how much boost it will build.  To my knowledge you'll also need the ECU to intentionally randomly misfire on the exhaust stroke to build full boost.

Here is my Mbox with the parameters posted earlier at 4500:

http://www.youtube.com/watch?v=lhszz7OTtAE

Pardon the color sanding mess.


I haven't tried launching it yet as I haven't finished tuning it due to wideband issues.  However I will say that given the fact I already twisted up a propshaft launching with no boost... I'm curious to know if it will help or hurt.  The car was hooking up pretty good launching about 4k with no boost.  Got some wheelspin this day because it was about 105 out.

http://www.youtube.com/watch?v=tmE8VjffJUY

If you listen close you can hear how loud my clutch is, lol.

Can someone explain the maps named "codeword...", whats the funktion of these values?
BR

Codeword usually refers to a single value or a value made up of multiple bit flags.

Can you give me an example, i do not really understand it.
for ex. in the a4 map attached in this thread, whats the difference between Codeword=0 and codeword=1 ?

Many thanks

Codeword Drehzahlbegrenzung could be two things. It could enable or disable the speed limit. I would assume 1 is enable, and 0 is disable. Or it could be the actual speed limit. But I am pretty sure it is just used to enable and disable.

Great, Thanks for helping!!
Regards

Has anybody figured out yet how the Maestro Suite makes 2 step work with a clutch signal yet? I find that far more interesting than something that disables itself after 10 minutes.

Thanks.

i tested this to my leon 20vt with big turbo gt35,and the results are quite good for the launch function but i have a problem with the raised rev limit,it's not stable.
i put the limit to 32000 but the limit is not always the same..
sometimes is 7600 sometimes 7800 and sometimes 8000,why is this happening?
try to raise throttle limit but it even worst.
any idea? 

Sorry for the long wait for a reply.  It sounds like DNMAXH is set too high, keep it under 100 RPM.  According to the Funktionsrahmen, the absolute maximum RPM is NMAXOG + DNMAXH. 

I am so sorry to be offtopic, but can we use this stock 2stage rev limiter so that we have to different limiters for different coolant temps? For example because my wife takes the car often (and as it is well known women have no respect for cars) can i set a limiter of 3500rpm until the engine reaches it's normal working temp and after the limiter to be raised to 7000rpm as normal? Thank you.

Good question, and yes the raised rev limit is flexible.  Set NMAX to 3500. NMAXOG to 7000.  TMOTNMX (Coolant temp for activating raised limiter) to somewhere around 80 (degrees C) also set the other maps  for  launch control.

Let us know how it works

Great news. It is working plus that temp tweek. You cannot exceed the lower limit if the coolant temperature is lower than TMOTNMX. Very useful when your wife uses the car for shopping !! ;) Thank you Nosbeui

My wife floored my car only once, since then she is driving easy. I think something about "omg I feel nauseous" has to do with it :)

I just kept adding stiffer engine mounts until she stopped wanting to drive mine. Now she sticks to the GTI.  ;)

hahaha, awesome!

Twin disc ceramic clutch did the same trick on my car, haha.

I've got one of those too. She hates my car.  ;D

Which ceramic twin disks are you guys running?  I'm running one of the first Clutchmasters FX850's...  Hoping to switch to carbon soon.

I have Fx750. I bought it slightly used for deeeeeep discount. I don't plan to do anything super abusive to my car so it is more than enough I might ever need.

Never say never though haha.

Ain't that the truth LOL

I got an RS4 pressure plate and ceramic clutch from VAST after I burned my clutch out doing launches at autocross.

There are days when I miss the driveability of my RS4 setup.  The only day I don't miss however is the day it exploded and blew a hole in the side of my bellhousing.  :lol:

On stock file i have the following values ! don't know if i am correct ! so i someone have do it he can help me :

 CWNMAXMD  : Change from o to 1
 VNMX : 5.00 ( /km/h )  change to 1.25
 DNMAXH: 117.750 ( U/min = RPM ) change to .....
 ITNMXH : 6.1400  ( /s ) change to 0.00
 NMAX : 16320.500 (/s) change to ......
 NMAXOG : 100.250 ( U/min = RPM ) change to 7200.00
 TMOTNMX : 9.75 ( C ) chage to  0
 TNMXH : 7.1600 ( /s ) change to : 0

Hi, and what in 8N0906018AE?
I cant find all maps :(

Works thanks for sharing.

Tested on 032RP and its v good.
I use VNMX = 1.25km/h its best for FWD but for 4WD i suppose 25-30km/h would prevent the lag by switching at low speed the rpm limiter.

http://youtu.be/GJX_uu4_Mwo

nice info but that is only a 2nd step rev limit, how can also be activated a fuel enrichment and ignition retard to gain boost?

thanks for sharing knowledge!

Can this be done in narrowband ECU's???

Yes

And NLS?

No NLS, this is the "soft" launch control only.

Is it possible to raise rev limiter on tiptronic? Cause there is no nmaxog into xdf file for 4z7907551R. There is only NMAXOGGA.
Am I right in understanding that I need to change NMAXOGGA?
Sorry for my poor English:)

can this be done on the me9.1 ECU?

I know that there is a stationary rev limiter but im not so sure its holding boost.

Hello! thank you very much for sharing this information!
In the ECU of my car (GOLF GTI) found all the maps listed here, unless I reference the above. - TNMXH (1631A)

I'm using WinOLS 1721, and that this map pak posted in this forum. - Someone can help me find this map?

TNKS A LOT

I guess this doesnt need any traction control systems in place?

Im making a project car but the car looms I have are from early models so no traction control in them.  So was wondering to have the launch feature I would have to wire in traction control?

Chris

i don't think that traction control will be a problem. This is a simple use of 2 rev limiters already existing in the ecu.

Hi

I cant get this working on 4B0906018CG-0261207215-360306 ecu which is from A4 B5 1.8t AWT.

Problem is that i cant find address for CWNMAXMD.

Here is ori file

@hipeka:
I think that is located on 0x11B04.

My map pack says that is CWDNMAX

Think CWDNMAX is at 0X10B35 and CWNMAXMD at 0x11B04 (90% sure).

Hello all, I need to know if the equivalent to TNMXH is: (ITNMXH) dwell time below lower engine speed limit before activation of upper limit - Verweilzeit unterhalb unterer Drehzahlgrenze vor Aktivierung der oberen Grenze (1x1)

I cannot find TNMXH in Argdub's HS .kp file

Could it be that this .kp is not compatable with my ECU's SW revision of 0007??

I understand that: (CWNMAXMD) is not required to be changed in the ME7.5 ECUs, I can't find it anyways in the .kp file either..

Thanks.

could i just use NMAXGA rpm speed limit for each gear including gear 0 ??? would this still have the same affect?

 
This means if i do that to my vw 2004 1.8t passat me 7.5 this will increase 1st gear speed onley no changes to others

Is this possible on 7.3.1 ECU? I will try to get it working on my Alfa GTA.

hello...!!!!! need put launch control on my s3 audi 225hp(ecu795-313chip)please help me!!!!!

nice!!!!

Does it work for Astra z20let Me1.5.5?

Andi

Yes, it works ;D

I've just tried.

Atleast in the Funktionsrahmen for the ME7.3.1 (147 TS) all the fields needed are available.
So most likely the V6 will have these too, its just a matter of locating them ;)

As i do own an Alfa 156 GTA i would not be happy with 10.9 minutes of "> launchrpm".
For Launch you would have to be around 4000-4500 to not excessivly wear the clutch.
And as you know, the Alfa comes to live at about 4000rpm, so some trips will for sure max it out for me,
as when pushing it i tend to stay over 4000rpm most of the time. ;)

Hello guys,

maybe someone can help me find CWNMXMD on an ME7.9.10 map, or can help me activate launch control.
What I found till now, but I'm not sure if they are right is following.

CWNMXMD A8CA7 1x1 8bit

NMAX ADBA6 1x1 16bit with muliplicator 0,25

VNMAX B1744 1x1 16bit with muliplicator 1,25

CWNMXMD is originaly on 4, and if i change to 1 nothing is happening.

Would be happy, if some could help me.

I need some help, I'm trying to make this but I can't findo some maps, who could help me?

DNMAXH - 13500
NMAXOG - 13502
NMAX - 13504
ITNMXH - 13508
VNMX - 157C1

Still missing:
TNMXH
TMOTNMX
CWNMAXMD

Can someone help???

hi, just trying to find map locations on a 06A906032HN map file.

i have HN map pack, but cant seem to find any addresses, a nudge in the right direction will be good :)

i have found the maps, but im not sure they are offset to the right location.

can anyone confirm the stock values

ie Codeword Drehzahlbegrenzung stock for me is 51.00

slowly getting there, seems things are offset by about 35.

will update with a map pack when done ;)

Would there be any changes in coding depending on what ECU and engine code you have? and if so what should one look for?

yes and what do you mean?

please help me how to locate maps in my ecu i have me7.5 2004 vw passat 1.8t

Hi all, can any one see what I'm doing wrong here, I'm getting the 4500 rpm limit but the limit is staying there when I pull away. I've tried a few different ways but same result. ???

Thanks

Hi will this work on this VW Golf IV 3.2 (R32) Bosch ME 7.1.1 ??

thanks

Hi all i done the auto script LC / NLS  and it works

Thanks

How did you get on with this?

I finally got around to enabling this feature on my ATW 1.8t and have a bit of information to share.  I noticed a couple posts about not getting the limiter to bounce around your set launch RPM and ran into this issue myself.  I believe the root cause of this is the PID controller for the DBW throttle doing its job too well.  What I found was the ECU was able to control the RPM adequately employing only the throttle plate and never hit the fuel-cut unless DNMAXH was set quite low (on the order of 10 RPM).  I think this is particularly true if you still have a heavy DMFW since the moment of inertia is quite high, thus slowing the rate of change of engine speed and reducing the need for the fuel cut.  To get around this, I set DNMAXH to a reasonable value, I think it's around 30 or 40 RPM, and just blip the throttle a couple times when I'm nearing my launch RPM.  The throttle blip is enough to "confuse" the throttle PID so that the fuel cut comes on.  Using this method I've been able to get my boost needle to bounce around 0 psi which isn't much, but at least it's better than launching under vacuum.  I hope this makes sense to all of you, if not I can try to clarify.

Cheers.

hmm, i'm going to give this a shot, i'm having the same issue, controller doing its job and closing throttle plate, dang it bosch for being smart.

Soooo got it working... Used 30 for rpm and it broke that throttle pid some... That mixed with removing torque limit and modifying throttle opening works like a charm... Awd burnout

edit : throttle pid still closes the throttle some, but the hard limit does its work

and the throttle modification was to open 100% right as i took off.

What map was altered for the throttle modification?

Glad you got satisfactory results!  I'm curious, what torque limit are you referencing?

i think the maps i modified were KFMDBGRG, my car was limited, i removed that and it definitely seemed to help with the take off

the throttle modification was KFWDKSMX, my throttle was not opening 100% until after 4k..... it will not bypass the throttle pid or anything but setting rpm to 20 to and bumping throttle a few times gets it to pop, when i let out the clutch it just burned the tires, good enough for me on AWD

here is a short clip of it in action http://www.youtube.com/watch?v=osJlZC27EoQ
i left traction control on which is why first gear stopped burning out :-\ forgot

That looks very similar to the behavior I've ended up with.  I have to say I got a good chuckle out of the 1.0 MPG as well!

So I attempted this on an avant CH although I don't think I found cwnmaxmd (11AEB?) in hex 8-bit values are 30 so I left it unchanged. With Nmax set to 4000. The rest I used suggested settings. Idle ends up jumpy, part throttle is rough (hard on/off  feel).

used these adresses: with LSB first marked
VNMX        11AFB   8bit
DNMAXH     16494 16bit
ITNMXH     16498  16bit
NMAX        1649A  16bit
NMAXOG    164A2  16bit
TMOTNMX  1F9EA   8bit - signed marked
TNMXH      164A6  16bit

I was playing around with this and I'm getting the same issues as the last few posters, but added to that, if I'm in neutral without the clutch pushed in and I hit the gas, the launch control kicks in and doesn't matter if the engine is cold or warm... isn't it NOT supposed to unless the clutch is depressed?

That is hard launch guy. This is soft launch.

oh.. OK. I thought something was wrong. Thanks for clarifying dd!

can this be done on the c box ecu

i have one question,does this cut just the ignition or also the fuel?

because if this cuts just the ignition the cat will be damaged

greetings from germany

Fuel.

Hi,
Is it possible to have your help please with my RS4 B5 file for ALS/NLS
Thank you

Who can help me find CWNMAXMD in this file?

116B8

thanks

DNMAXH         (16304)     This is the RPM above rev limit when the fuel cut comes on. Tweaking this helps make more boost on the limiter. I use 50 RPM  (Keep in mind the maximum RPM limit is NMAXOG + DNMAXH)

Already have LC/FS but id like to have a few more pop's and bang's when using launch control, would tewaking this as above help with this?

Is DNMAXH just for Launch Control or does it do both Launch control and falt shift?

Thanks

Hi, dont know if this is an old thread or not but i have set the values to what you have but my launch limmit doesnt bounch... its just held? how can i make it like the video?

VNMX             (1157E)     The vehicle speed for activating the raised (normal) rev limit. We set this as low at it goes (1.25 km/h) so the launch control shuts off as soon as you start moving off the line.
DNMAXH         (16304)     This is the RPM above rev limit when the fuel cut comes on. Tweaking this helps make more boost on the limiter. I use 50 RPM  (Keep in mind the maximum RPM limit is NMAXOG + DNMAXH)     
ITNMXH          (16308)     Dwell time under lower limit before activating the upper limit. We set this to 0 seconds
NMAX             (1630A)     Ends up being the launch RPM. I've found 4500 RPM works well.
NMAXOG         (16312)     This is the raised RPM limit which becomes the standard limit. Mine is set at 7100 RPM (I left this as my stock one)
TMOTNMX       (16316)     Coolant temp for activating raised (normal) rev limit. We set this at -48 so that it can activate at any coolant temp.
TNMXH           (1631A)     This is the time duration of the raised (normal) rev limit. We set this at it's maximum value of 655.3500 seconds. I haven't had a problem yet with this and have been testing for months.

http://s4wiki.com/wiki/Tuning#Hard_Limiter

Ok, I seen that but what and were do I get the custom maps ?

Attached some mapping and mappack. Can you please check whether all is done properly for LC?

Any suggestions/corrections?

Hi guy,

I came to the conclusion that on my ME7.5 (512kb ecu) I can not implement the launch control :(
I have a TT in 2000 apx engine with 512kb ecu
I probably did not NMAXOG, TMOTNMX and TNMXH

can I implement the launch control?

A question for SixSeven or anybody else that may know: is there a CWNMAXMD bit in the 018P ecu? I have transferred the 4B0906018P - 352750 mappack to the offsets for the 018AA ecu, but CWNMAXMD was not in the definitions so I could not set this. Big thanks  :)

Does this work on my Audi S3 APY 8L0906018N
I can't find all the maps in the XDF file i've found
BTW i think my ECU has ABT software

No your file is half the size of the one on this thread

Mine works, thanks for this trick guys  ;D

I'm looking for some addresses in my block 4B0906018CL

I found some:
NMAX       - 0x16568 - 2 bytes - 0.25 factor
NMAXOG   - 0x16570 - 2 bytes - 0.25 factor
TMOTNMX - 0x16574 ?? bytes? factor?
TNMXH     - 0x16578 ?? bytes? factor?
CWNMAXMD - 0x11B04 - 1 byte

Also looking for:
VNMX       
DNMAXH 
ITNMXH   

Do I need CWNMAXMD?
CWNMAXMD - 0x11B04 ??

PS
this addresses looks good for me. Can anyone test it?
VNMX 11B15
DNMAXH 16562
ITNMXH 16566
NMAX 16568
NMAXOG 16570
TMOTNMX 16574
TMNXH 16578
CWDNMAX 12219

MAP FOUND: KFZWOP 11x16 @ 0x119A3
MAP FOUND: KFZWOP2 11x16 @ 0x11A53
MAP FOUND: KFZW 12x16 @ 0x12561
MAP FOUND: KFZW2 12x16 @ 0x12621
MAP FOUND: KFMIRL 16x16 @ 0x15716
MAP FOUND: KFMIOP 11x16 @ 0x163E4
MAP FOUND: KFLBTS 16x12 @ 0x193B3
MAP FOUND: LAMFA 6x15 @ 0x1D092
MAP FOUND: KFLDIMX 8x16 @ 0x1EA60
MAP FOUND: KFDLULS 8x8 @ 0x1F297
MAP FOUND: KFLDRL 10x16 @ 0x1EBB2
MAP FOUND: LDRXN 16x1 @ 0x1F1D8
MAP FOUND: LDRXNZK 16x1 @ 0x1F21A
MAP FOUND: VMAXNB 1x1 @ 0x1FAF2
MAP FOUND: VMAXTM 5x1 @ 0x1FB00
MAP FOUND: VNMX 1x1 @ 0x11B14
MAP FOUND: NMAXDVG 1x8 @ 0x1FAD0
MAP FOUND: NMAXGA 1x8 @ 0x1FAE0
MAP FOUND: NMAX 1x1 @ 0x16568
MAP FOUND: NMAXDV 1x1 @ 0x1656A
MAP FOUND: NMAXOG 1x1 @ 0x16570
MAP FOUND: DNMAXH 1x1 @ 0x16562
MAP FOUND: ITNMXH 1x1 @ 0x16566
MAP FOUND: TMOTNMX 1x1 @ 0x1FAF0
MAP FOUND: TNMXH 1x1 @ 0x16574
MAP FOUND: CWDLSAHK 1x1 @ 0x181BC
MAP FOUND: CDKAT 1x1 @ 0x181A1
MAP FOUND: CDHSH 1x1 @ 0x1819C
MAP FOUND: CDHSHE 1x1 @ 0x1819D
MAP FOUND: CDHSHE 1x1 @ 0x1819D
MAP FOUND: CDLSH 1x1 @ 0x181AB
MAP FOUND: CDSLS 1x1 @ 0x181AB
MAP FOUND: CLASLPE 1x1 @ 0x108B9
MAP FOUND: CLASLVE 1x1 @ 0x108BC
MAP FOUND: CLASLVE 1x1 @ 0x108BF
MAP FOUND: KRKTE 1x1 @ 0x1CF38

Hi Folks. I think I'm experiencing throtle cut because of max REV timer reached causing missfire.
That brings to you guys two questions.
1. I thought that the throtle cut only happens during the launch it self. Didn't know that it would do the same throtle cut at high RPM WOT while racing! Is it possible that it will do the cut max rpm during normal draving?
2. What can I do to resset that timer? unplug batterie would be anough or need to reflash everytime?

Sorry for the noob questions.

I love Nefmoto :P

hello!
its possible add launch to volvo me7.0/me7.01?

D:\Volvo>ME7Check.exe 0261208289.hex
==============================================================================
ME7Check v1.12 (c) mki, 06/2004-05/2012
Checking file 0261208289.hex (size=1048576)
Reading Version Strings...
-> Bootrom Version = 44.44 (UNKNOWN)!!        ** NOT OK **
-> EPK = 45/1/ME701/19///70195G6/70195G6/140504114927/..
-> ECUID data table not found                 ** NOT OK **
-> file not recognized as ME7, stopping analysis

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Sry, file upload went wrong...

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Does anyone know what more to do for it to work on med9.1?
Even with all these changes, nothing happens.
Is it some kind of codeword?

Hi everything!

I have 1 question - i set NMAX to 4500, this max value of RPM be used only at launch? On a run RPM will be limited on this value?

It depends how you set other limiters (temperature, speed and time) and how is raised limiter set.
If you set VNMX to lowest speed (not 0), TMOTNMX to minumum (-48*C), TNMXH to maximum (655,35s) and ITNMXH to 0 it should be using NMAXOG when driven and NMAX only when stationary.

There is one thing I want to be sure about.

If Iam using the auto add script I have to assign the code space myself. Read somewhere that I just have to look for large "FF" areas. Is there anything else to consider finding empty space ?

You posted in wrong topic I suppose as this one is about poor people launch control (using NMAX/NMAXOG etc).

I agree. My fault. No extra code implanting.

tjwasiak, thanks!

Another person asked my same question so i thought id bump it. On the 551R XDF I only have NMAXOGGA not NMAXOG. I dont know if this is because 7.1.1 is different or something but im trying to understand. NMAXOGGA seems to be a rev limiter figure set originally for 6800. But i still cant get this working. It flies right by 4500 every time. I might try to adjust the DNMAXH to a lower number like 35 or something because i still have the stock flywheel on there. I cant be the only one to put Launch control on a 551R box. Someone help me out. ::)

If memory serves, I did not have to touch this bit on the 018P.  As a matter of fact, I'm not sure I ever tracked it down either.

Thanks for the reply  8) I'm not using this version anymore but I got it working without that bit yes.

so i got the launch control working... making loud bangs  ;D

but after the car sorta has a misfire.. i turn it off and turn back on, all good again..

is this due to bad spark plugs or coil pack?

Loud bangs on a fuel cut limiter?
Either you are in the wrong thread or something is seriously wrong with your engine.

Has anyone toyed with the idea of turning the PI controller gains under NMAXMD to zero (NMXPG, NMXPRLG, KINMXG, KINMXRLG, TNMXPR?) so that maybe there is no throttle closing on the limiter, only fuel cut? As a potentially more efficient method than turning DNMAXH down low so fuel cut just comes on overshoot and confusing the PI controller that would likely end up with some wild throttle fluctuations and not building boost ideally. I would then set DNMAXH to 0 so the limiter is equal to NMAX. Obviously all this would also apply to the NMAXOG limiter as well which is obviously less safe than having throttle cut as well as fuel cut as the factory intended, not to mention the extra stress on the valvetrain etc that fuel cut would cause over throttle cut.

Another point, this sentence in the FR under NMAXMD "If tnmxh_w expired (TNMXH) a ramp for nmax w is started. The variable nmax_w is reduced in steps of DNMAX until it reached its lower limit NMAX" implies that maybe setting DNMAX to 0 will effectively disable the timer TNMXH (or at least the implementation of the ramp down to NMAX) so that the launch control rpm can be set below cruising speeds without the detrimental risk of NMAX overriding NMAXOG after 655 seconds.

I haven't tried any of these myself yet, but I'll be sure to post any results

Hi,

can someone please confirm that on stock file 1.8t 8E0909518M VNMX is already set to 1.25 km/h and TMOTNMX is also set to -48c ?
I was trying to play around with that "launch control" stuff, but it doesn't seem to work.
I'm pretty sure I've got other scalars right.

Is the VNMX on address: 11AC9?

And I haven't found CWNMAXMD yet (is it the same as CWDNMAX in 7551M), could someone please help?

This.

I don't have any bangs or stuff like that, it drives and acts like normal, but the rev limiter (set to 3800) doesn't seem to work for some reason.
Any ideas?

Hi again,

can NMAXVG affect on this version of "launch control" ? . I've set it to 6400 in first two rows, so it is lower than my max rpm in NMAXOG.

Thanks :)

Hi!
In my ECU CWNMAXMD (8-bit) Codeword Drehzahlbegrenzung has a value of 16. It`s really?
As far as I understand, "16" is an incorrect value for the launcher control.
Adress 116E6 is right for CWNMAXMD?