Enabled DTC mode on the ///M (Track mode ?)

[pungo]

Originally Posted by Beedub

fyi guys, got the software and cables and did some research.... I've loaded up thi DTC mode..

just noted the m3 guys are able to get the actually M-TRAK light , some are getting the DTC light, but it seems this light can be activated too, anyone tried this one the z4m platform ??? guessing our cluster may not have that bulb.

http://forums.m3cutters.co.uk/showth...t=38098&page=3

also to get the DTC set so its actually cutting in and out at the CSL spec M track we need to change these settings.. to these but they appear different in our data, so I'm not totally sure what we are activating in our instance but its definitely not the higher thresholds that the CSL have without changing the below... we seem to just be adding in the function from the 3.0Si which id guess isn't optimised for the M-diff, the CSL values for the M track are below. Our settings in the .MAN file are quite different.

UEBERSTEUERN_MUE_1_2 - wert_11
UNTERSTEUERSCHWELLE_2 - wert_04
UNTERSTEUERN_MUE_1_2 - wert_03

all info in the above thread.

Is this definitely changing the thresholds or just turning on the light..... lol?????

turning on TDR isn't changing any values of the understeer oversteer cut in and outs i don't think, but not sure how to check???


is this a way to check the valves for the DTC mode?? and where do i change them, i can see the above germans sentences in the mk 60 module but how do we know if thats for the traction fully on, DTC , or the OFF mode settings?

Did you read this thread? It makes a big difference and just doesn't turn a light on and off. It doesn't just add the 3.0si function since the code is different for open vs LSD diff. The M3 and Z4 are different cars so you can't expect understeer and oversteer values to be set the same. There may be some tweaking with different values that will result in increased performance on the track It would be interesting for you to experiment with different values and report back with your results.

[inTgr8r]

Originally Posted by Beedub

i haven't had change to drive the car yet, but if you say their is a definite change then i look forward to experiencing this. As your saying theirs a huge difference , what exactly are you feeling ??? ( i won't be out in my car for a while yet )

would still be nice to change those settings to the CSL spec....... which is the proper M track mode for OUR diff if you get me.

See post #30 in this thread for my comments.

[Beedub]

i will do some experiments with the CSL track settings after I've tried DTC, if this doe what i need then i won't even bother...

[inTgr8r]

Originally Posted by Beedub

i will do some experiments with the CSL track settings after I've tried DTC, if this doe what i need then i won't even bother...

a little caution is called for, some of the programmable thresholds are done in hex.
(not sure about these)

[Beedub]

Originally Posted by inTgr8r

a little caution is called for, some of the programmable thresholds are done in hex.
(not sure about these)

thanks for the heads up.

[Beedub]

if anyones interested this is the light now added on this new software activation.

[yousefnjr]

^^ how do I get my car to have only 12k miles?

[Beedub]

Originally Posted by yousefnjr

^^ how do I get my car to have only 12k miles?

buy one new and don't get to use it that much because your life is so busy you have zero time to yourself.

[pungo]

Looks like Christmas lights, there's allot lit up even low gas.
BTW, I posted a pic of the DTC light on in the 1st post of this thread.
Now go out and have some fun with it turned on and off, then report your results.

Originally Posted by Beedub

if anyones interested this is the light now added on this new software activation.

[Mirko]

I stumbled across a write up of DTC for our MK60 module.

Page 17/24
https://dl.dropboxusercontent.com/u/...20Dynamics.pdf

"DTC achieves maximum possible traction essentially by expanded ASC and DSC control thresholds. Compared to the ASC/DSC function, DTC mode allows a little more "drift" at low speeds and transverse acceleration (increased rear wheel spin is permissible up to a speed of approx. 45 mph). This allows the engine power output to remain without an extreme reduction of power, improving propulsion.

On approaching higher speeds and transverse acceleration (measured by the yaw rate sensor), the DTC function acts more and more like the "normal" ASC and DSC function and the slip thresholds are reduced back to a conservative mode for stability reasons."

[Beedub]

Originally Posted by pungo

Looks like Christmas lights, there's allot lit up even low gas.
BTW, I posted a pic of the DTC light on in the 1st post of this thread.
Now go out and have some fun with it turned on and off, then report your results.

definitely xmas lights... is the pre-ignition sequence as the car wasn't started, when its in storage to try to avoid starting it and letting it idle until its out and actually driving, alot of wear occurs during that time.

i will report back shortly, nearly time to awaken the beast!!

[Dalecan]

[QUOTE=Beedub; time to awaken the beast!![/QUOTE]

Funny, that's what the wife said to me last night.

Sorry, I couldn't resist.

[Beedub]

Originally Posted by Dalecan

Funny, that's what the wife said to me last night.

Sorry, I couldn't resist.

lol!

[Bossdog]

Originally Posted by Mirko

I stumbled across a write up of DTC for our MK60 module.

Page 17/24
https://dl.dropboxusercontent.com/u/...20Dynamics.pdf

"DTC achieves maximum possible traction essentially by expanded ASC and DSC control thresholds. Compared to the ASC/DSC function, DTC mode allows a little more "drift" at low speeds and transverse acceleration (increased rear wheel spin is permissible up to a speed of approx. 45 mph). This allows the engine power output to remain without an extreme reduction of power, improving propulsion.

On approaching higher speeds and transverse acceleration (measured by the yaw rate sensor), the DTC function acts more and more like the "normal" ASC and DSC function and the slip thresholds are reduced back to a conservative mode for stability reasons."

Well, I guess the DTC mode wasn't some big "secret" hidden away from the E85/86 owners. It is very odd it was not activated from the factory!

I finally had an opportunity to get my MR out of storage and play with the DTC function, just on street roads. The test was a rolling 90° corner in second gear with early aggressive acceleration out of the corner. Note: I still had my Fun-flats on and the temp outside was in the low 40's F
First, with full traction control on, as expected, power is cut and the car is stabilized very quickly.
Next, with the DTC function on, a slight step-out of the rear and spinning wheels, it didn't really feel like there was much intervention. With a slight steering correction and slight reduction in accelerator, the car squared up nicely and continued on down the road in an aggressive manor.
Last, I turned off everything, same corner. HOLY CRAP! I almost lost control of the vehicle! I was all over the road, into the oncoming lane. However, as others have said, a quick steering correction and a reduction of gas pedal and the car quickly centers itself. Perhaps I was a bit more aggressive with the final test, I'm not sure. But, it certainly showed me the DTC mode, although it feels like it is not intervening much, I suspect it is still doing quite a bit (which is a GOOD thing AFAIC)

Being new to the Z4M, I'm really looking forward to putting on my extreme summer tires and getting her out to some AutoX events so I can learn more about the handling characteristics at the limits. Like others have said, it seems like she can be a real handful with too aggressive of inputs.

[hpapad01]

Do any of you have any cheat sheets for the 4ZM (E85). I have a friend with one and I would like to see what option and modules are available.

[3002 tii]

I recently enabled M track mode. Didn't get to test on track yet but I am able to get DTC icon show up on dash. Only line changed was TDR.

Ran Carly and got the following shadow code. Anyone else encounter this?

[pungo]

Originally Posted by 3002 tii

I recently enabled M track mode. Didn't get to test on track yet but I am able to get DTC icon show up on dash. Only line changed was TDR.

Ran Carly and got the following shadow code. Anyone else encounter this?

Try to switch back to normal mode and try carly again. I've never used carly so don't know if enabling TDR effects it.


I did look into carly when I got my F25, but then found out they would charge me annually for the privilege to use it so I looked the other way.

[3002 tii]

Originally Posted by pungo

Try to switch back to normal mode and try carly again. I've never used carly so don't know if enabling TDR effects it.


I did look into carly when I got my F25, but then found out they would charge me annually for the privilege to use it so I looked the other way.

Normal mode as in deactivate TDR or turn DTC off? That code was pulled with full traction on (set back to normal).

Re Carly, I must have got it before they changed to subscription pricing.

[pungo]

Originally Posted by pungo

Try to switch back to normal mode and try carly again. I've never used carly so don't know if enabling TDR effects it.

Originally Posted by 3002 tii

Normal mode as in deactivate TDR or turn DTC off? That code was pulled with full traction on (set back to normal).

I was saying remove the track mode coding returning it back to stock and see if carly still gives the error.

[3002 tii]

Bump... the previous error seems to have resolved on its own but now I see codes 5DA3 and/or 5D93? These are related to front wheel sensor but I can’t tell if my front sensors are really malfunctioning or if this is just a result of coding?

[inTgr8r]

Originally Posted by 3002 tii

Bump... the previous error seems to have resolved on its own but now I see codes 5DA3 and/or 5D93? These are related to front wheel sensor but I can’t tell if my front sensors are really malfunctioning or if this is just a result of coding?

Many others including myself did this coding without faults.
If it was the coding you would think that others would have the same result that you are experiencing.

[3002 tii]

Originally Posted by inTgr8r

Many others including myself did this coding without faults.
If it was the coding you would think that others would have the same result that you are experiencing.

Right only asking because it doesn’t actually show up on dash. It only shows up if you go out of your way to pull (shadow) codes. I enabled DTC and disabled TPMS same day and I’m trying to determine what’s a real issue vs coding done incorrectly.