[Anon1]

Chris S, I sent you a copy of my 98G0B XDF. There are lost of untested maps in there. I'm hoping more people can review it before I release it.

[fryj00]

Wow, great information and unbelievable effort. Thanks for your time, anjuna.

This like drinking from a firehose but I'll live. Got some reading to do.

Btw, I don't suppose anyone knows where to find a relatively recent 98G0B xdf? In particular, I'm looking for the new VCV tables. Any help is much appreciated!

-Bryan

[Chris S.]

Originally Posted by Anon1

Chris S, I sent you a copy of my 98G0B XDF. There are lost of untested maps in there. I'm hoping more people can review it before I release it.

Thanks. I was struggling with the Vanos tables too. Your's look much more consistent than what I translated. I found another 10 vanos looking tables when mapping across.

I noticed that the s55 xdf used a different interpretation for the y-axis on the exhaust tables. yes, the bin has 00 01 02 03 04 06 07 08 09 for it, but who ever defined it for the S55 xdf, used R N 1 2 3 4 5 6 7 8 for the Y-axis.

BUT... the tables you mapped to have different values than what I had found and the non-sport exhaust tables end at the 7th row for my bin, which makes me think your y-axis is correct (I'm DCT).

[Red_Bean_Bun]

Subed ...

[Falko123]

Hi this thread just made me register to this forum. I would love to help testing. my ECU is 98G0B. Probably I can also help with some translation if you need. I'm German that might come in handy here. Keep the good work going.
Is there somewhere a working link? The links from the first post seem to be dead and the GitHub doesn't seem to have anything related to 98G0B.

[fryj00]

Originally Posted by Anon1

Chris S, I sent you a copy of my 98G0B XDF. There are lost of untested maps in there. I'm hoping more people can review it before I release it.

I'm your huckleberry. Can you send me a libk or you need email?

[Anon1]

Originally Posted by fryj00

I'm your huckleberry. Can you send me a libk or you need email?

Sent!

[anjuna]

I have been out of the loop for a bit.

Back in action.

Responded to PMs

[Falko123]

Hi Anon or anjuna, another weekend is coming up. I would love to spend some time digging through and testing your xdf for 98g0b. Could you please share a link?

[Anon1]

Originally Posted by Falko123

Hi Anon or anjuna, another weekend is coming up. I would love to spend some time digging through and testing your xdf for 98g0b. Could you please share a link?

Sent!

[Falko123]

I am amazed. Lots of reading to do Thank you!
And my neighbors should say thank you to you Anon. Finally I have control over my exhaust flaps. Only one question though did you discover how to have it closed in idle? I set the Vmin to 0 and it will close immediately when I take off. But Idle still open, I would prefer it closed. I have an aftermarket exhaust with catless downpipe. Basically with the valves open it's straight pipe.

[Anon1]

Originally Posted by Falko123

I am amazed. Lots of reading to do Thank you!
And my neighbors should say thank you to you Anon. Finally I have control over my exhaust flaps. Only one question though did you discover how to have it closed in idle? I set the Vmin to 0 and it will close immediately when I take off. But Idle still open, I would prefer it closed. I have an aftermarket exhaust with catless downpipe. Basically with the valves open it's straight pipe.

Try setting these to 0:
TVSTAKR - "Delay time for exhaust flap control after start"
VMINAKR - "minimum vehicle speed for pulse output"
VMINAKR2 - "Speed ​​threshold for exhaust flap control on cold start"

[Falko123]

I put both on 0 on cold start it closed the flap right after the timer, or building up enough vacuum to operate the two actuators. made sense.
when warm there seems to be another logic. first I Had the 17.5 km/h so it started to work after that. Changed to 0 and now it closes when it sees 1km/h from the speed sensor. But will open at 0.

[Anon1]

Originally Posted by Falko123

I put both on 0 on cold start it closed the flap right after the timer, or building up enough vacuum to operate the two actuators. made sense.
when warm there seems to be another logic. first I Had the 17.5 km/h so it started to work after that. Changed to 0 and now it closes when it sees 1km/h from the speed sensor. But will open at 0.

I just checked. My valve is definitely closed at idle with those settings.

[Falko123]

Thanks for checking. Could it be that the ppk software has another codeword activated?
My Backup Bin is ppk, as that's what I used prior to MHD.

[Anon1]

Originally Posted by Falko123

Thanks for checking. Could it be that the ppk software has another codeword activated?
My Backup Bin is ppk, as that's what I used prior to MHD.

Try setting your CWAKR - Exhaust flap control code word to 19

[Falko123]

just for others code word 04 did what I wanted it to do.

new question coming up.
I am testing to have different power levels in normal and sports mode.
the idea of the game is to have my two exhaust valves closed in normal most of the time only high rpm I open them to help flow.
in sports mode I have them open after 1500 rpm to get out everything the engine/turbo has to offer.

my approach so far is too set the load ceiling and the torque request ceiling high enough for what I want it to do. than I use the modeled torque tables.
table 1 I set to 400 Nm And table 2 to 620 Nm. but in sport mode it won't request high load now. if I go higher in modeled torque 1 it will do as requested. is there a table that's limiting the difference between the 2 tables?

[anjuna]

Originally Posted by Falko123

just for others code word 04 did what I wanted it to do.

new question coming up.
I am testing to have different power levels in normal and sports mode.
the idea of the game is to have my two exhaust valves closed in normal most of the time only high rpm I open them to help flow.
in sports mode I have them open after 1500 rpm to get out everything the engine/turbo has to offer.

my approach so far is too set the load ceiling and the torque request ceiling high enough for what I want it to do. than I use the modeled torque tables.
table 1 I set to 400 Nm And table 2 to 620 Nm. but in sport mode it won't request high load now. if I go higher in modeled torque 1 it will do as requested. is there a table that's limiting the difference between the 2 tables?

You will not see any benefit from doing this

EDIT - I should expand on this and say I understand the concept of flow versus velocity (similar to the multi stage intake manifolds) But at this point in your exhaust the exhaust gases already traveled through the turbo charger and Matt resistance. Any resistance that can be eliminated after the turbo charger is only going to be helpful I'm never going to be detrimental

[Falko123]

Originally Posted by anjuna

You will not see any benefit from doing this

EDIT - I should expand on this and say I understand the concept of flow versus velocity (similar to the multi stage intake manifolds) But at this point in your exhaust the exhaust gases already traveled through the turbo charger and Matt resistance. Any resistance that can be eliminated after the turbo charger is only going to be helpful I'm never going to be detrimental

Well I am not going to argue, but note I don't have the original exhaust, but a titanium 2 Valve 2 Muffler setup, Valves open means on my car 2x63mm straight pipe, with catless downpipe.
When the valves are closed everything goes through the mufflers and the car is more quiet than OEM exhaust catless, but feels also lazier.


I think when I go through the mufflers I do have a lot more back pressure, but open is different story. This affects spool and what the turbo/engine can do without knocking.
Will do some more logs to see what it does.

But any Idea why it would not let me ask for 400Nm in Normal and 620 Nm in Sport?

[strooth]

For those in this thread that might find it useful (or anyone else) I have managed to convert the 7982790B to an SQLite3 Database

Screenshot


Database Link

[majorahole]

just saw this thread, been converting the xdf over to winols, because it's so much faster to make changes and easier to identify maps in 3d mode. plus im used to it! once I do that i will be putting more time into this. I have most experience with Bosch med9 2.0t remapping. I see there's maps that in the Bosch ecu's
require changing to mitigate how much DTC interferes and just overall requested tq. I'll report more once I get some data to share

[houtan]

Quick question, is the vanos calculator going to be made available?