Search found 133 matches

by Evil
Fri Mar 01, 2019 1:47 pm
Forum: Bosch
Topic: M3.3.1 motronic (413 and 506) tuning and XDF update?
Replies: 231
Views: 91624

Re: M3.3.1 motronic (413 and 506) tuning and XDF update?

Nice !
I didn't understand why raw values were increasing with rpm... :lol:
With the good equation things are way better.
Thank you very much !
by Evil
Thu Feb 28, 2019 1:32 pm
Forum: Bosch
Topic: M3.3.1 motronic (413 and 506) tuning and XDF update?
Replies: 231
Views: 91624

Re: M3.3.1 motronic (413 and 506) tuning and XDF update?

Hi all,
Does someone knows unit and factor for datas in dwell time table? I will soon use some "high performance " coilpacks for my turbo setup, and will have To tune this table for the new coilpacks..
by Evil
Thu Feb 21, 2019 5:36 am
Forum: Bosch
Topic: incorrect checksum symptoms??
Replies: 5
Views: 670

Re: incorrect checksum symptoms??

I've seen this "1utomatic checksum correction" in some xdf but it doesnt work.
Anyway like olafu said, a bad checksum only causes a CEL, I personnally never change checksum on my tunes, I have just deactivate checksum dtc.
Your xdf was probably wrong
by Evil
Wed Feb 13, 2019 12:49 pm
Forum: Bosch
Topic: E36 402
Replies: 15
Views: 2199

Re: E36 402

If you want more try to retard ignition timing :)
For some kind of "antilag" you need to flow more air on overrun, by opening more the ICV
by Evil
Sat Feb 02, 2019 11:11 am
Forum: Bosch
Topic: MAP conversion for high boosted application
Replies: 8
Views: 3976

Re: MAP conversion for high boosted application

Did the swap today and a pre-tune (No more idle and wot maps, changed the adresses in the table index, PT/wot switch To 254, all fueling and ignition will work with PT tables). Good thing To know: the MAP sensor I use is a 2bar from a sierra cosworth, the electrical plug is absolutely the same :D I ...
by Evil
Wed Jan 30, 2019 2:40 pm
Forum: Bosch
Topic: MAP conversion for high boosted application
Replies: 8
Views: 3976

Re: MAP conversion for high boosted application

I've boosted my m50b25 with a gt3076. I've done a "housing swap" on my MAF (not an easy thing with the hot wire maf from non-vanos engines ) but maf signal is very unstable at idle and low loads. The only maf swap for 402/403 dme is the M5 3.8, so I think I will do the TPS/MAP swap. Mykk, is your se...
by Evil
Sat Dec 29, 2018 1:41 pm
Forum: Bosch
Topic: E36 402
Replies: 15
Views: 2199

by Evil
Fri Dec 28, 2018 9:53 am
Forum: Bosch
Topic: E36 402
Replies: 15
Views: 2199

You're lucky I have a XDF for 402 599, here it is :

https://transfernow.net/41i2k233o85w

not "full xdf" but you'll find all you need .
All tables after "closed loop lambda" are wrong because I used a 403 xdf as basis and didn't delete those ^^
by Evil
Thu Dec 20, 2018 12:41 pm
Forum: Bosch
Topic: E36 402
Replies: 15
Views: 2199

is it a soft 098 or 599?

I have no XDF for 402 but I can find map for burble easily (very similar to 403)
by Evil
Thu Dec 20, 2018 12:06 pm
Forum: Bosch
Topic: E36 402
Replies: 15
Views: 2199

Unfortunately I didn't keep it, sorry... but if you need I can tell you map adresses for your 402. Tuning for pop1bang is not so different than the rest, just set an AFR on overrun and try different ignition angles depending on which type of pops you want. A good thing to do could be to extend Idle ...
by Evil
Wed Dec 19, 2018 2:26 pm
Forum: Bosch
Topic: E36 402
Replies: 15
Views: 2199

I did some tests on a 403. First you have to set overrun fuel cut to the same value than your rev limit, To allow fuel injection on overrun. Then you have to play with fueling and ignition on idle maps. The problem is that there must be a limit in "ignition angle variation speed" or something like t...
by Evil
Mon Nov 19, 2018 8:01 am
Forum: Bosch
Topic: research bmw bosch ecu 0 261 200 402
Replies: 6
Views: 1289

which soft do you want? 599 or 098?

Pour quel software, 599 ou 098?
by Evil
Wed Nov 14, 2018 7:43 am
Forum: Bosch
Topic: DME 403 SOFT 950 XDF
Replies: 10
Views: 4338

by Evil
Tue May 29, 2018 2:09 pm
Forum: Bosch
Topic: M3.3.1 motronic (413 and 506) tuning and XDF update?
Replies: 231
Views: 91624

Olafu: for your wot problems, the same thing happend To me in lower proprtions (between 1/1.5+ on afr on first and second gear acceleration). I almost solved the problem by rising values in the last column of "acceleration enrichment quantity". I dont know if its the best solution but it worked for ...
by Evil
Thu Apr 05, 2018 7:01 pm
Forum: Bosch
Topic: DME 403 SOFT 950 XDF
Replies: 10
Views: 4338

For temperatures i use X*0.75 - 48. Thats the formula Ive seen on many threads here, dont know if its 100% accurate.
Are you sure for D6 To be raw load?? There is no D5 in 403, and I think raw and dampered load are D3 and D2 :wink:
by Evil
Wed Mar 28, 2018 1:54 pm
Forum: Bosch
Topic: DME 403 SOFT 950 XDF
Replies: 10
Views: 4338

DME 403 SOFT 950 XDF

Here is my current XDF for DME 403: https://www.catupload.com/download/dd963ab87d2899872360a690746a3567.html Many things have been found thanks to the discussions we have on the 413/506 thread and the amazing work of Hairyscreech and Olafu (also Mykk who is very active on this thread)... So a HUGE t...
by Evil
Wed Feb 28, 2018 3:27 pm
Forum: Bosch
Topic: M3.3.1 motronic (413 and 506) tuning and XDF update?
Replies: 231
Views: 91624

For the TPS thresolds, the RPM values are those in the XDF shared by Olafu about this, sooner in this thread. I have never checked if it was correct for my 403, but the thresolds are working for sure, I modified them for my ITBs because TPS range was very shorter on them.. I think that the different...
by Evil
Wed Feb 14, 2018 7:09 am
Forum: Bosch
Topic: M3.3.1 motronic (413 and 506) tuning and XDF update?
Replies: 231
Views: 91624

Interesting! I noticed that last t° cell on ECT related tables (with formula x*0.75-48) was reached way before the engine had reached this t°. E.G on ECT fuel correction, the 80°C cell is hit when engine is at about 55/60°C in the radiator inlet pipe (t° in engine must be a little higher, I hav...
by Evil
Mon Feb 12, 2018 2:48 pm
Forum: Bosch
Topic: M3.3.1 motronic (413 and 506) tuning and XDF update?
Replies: 231
Views: 91624

In my french repair manual, for both air and water sensor, they say 2200/2700ohms @20°C and 300/370ohms @80°C, so your second sensor seems To have the good values. I remember I tested both on my car this summer @20°C and values were in the range. The water sensor was in the range too at operating...
by Evil
Mon Feb 12, 2018 12:20 pm
Forum: Bosch
Topic: M3.3.1 motronic (413 and 506) tuning and XDF update?
Replies: 231
Views: 91624

For the air temp sensor I can check on mine if you want, what do you need exactly?
by Evil
Tue Feb 06, 2018 7:47 am
Forum: Bosch
Topic: M3.3.1 motronic (413 and 506) tuning and XDF update?
Replies: 231
Views: 91624

Very interesting! Thanks for these updates.
by Evil
Fri Jan 19, 2018 7:54 am
Forum: Bosch
Topic: MAP conversion for high boosted application
Replies: 8
Views: 3976

Great news! For the wot tables, maybe is there an unknown thresold anywhere that cause these wot fuel problems. I think both ignition and fuel wot tables could be extended, with complementary scaling of the load scale between PT and wot. Asks some work for "programming" but I believe it should work....
by Evil
Thu Jan 18, 2018 8:47 am
Forum: Bosch
Topic: MAP conversion for high boosted application
Replies: 8
Views: 3976

On M4.4 (volvo turbo) I have seen that the same tables is used at several points of the "table of tables", something like 4/5 times, so maybe you can be optimistic about that :D I don't remember what table it was and what was is function, I was just making comparisons with MP3.2 so didnt make very d...
by Evil
Mon Jan 15, 2018 5:59 pm
Forum: Bosch
Topic: Bosch Motronic red label 402 DME(need help getting started!)
Replies: 6
Views: 3912

Bigger maf with corresponding transfer fonction.

Soft number ls written on the chip I think. You can also find this number in the end of your Bin, using the ASCII column of the hex editor
by Evil
Mon Jan 15, 2018 11:49 am
Forum: Bosch
Topic: MAP conversion for high boosted application
Replies: 8
Views: 3976

good to have a real life feedback about that! For ignition tables, on MP3.2 they are RPM/Load related, like us. I dont see what could be a problem, for a given RPM load is directly related to boost value. Anyway I think that those tables can be converted to RPM/Boost instead of RPM/Load. For a bette...
by Evil
Sun Jan 14, 2018 5:04 pm
Forum: Bosch
Topic: MAP conversion for high boosted application
Replies: 8
Views: 3976

MAP conversion for high boosted application

I was reflecting about using a MAP sensor with our 3.X(.X) motronics. For low boost applications the simplest solution is a MAF swap for a bigger one, and seems to work well. But for high boost, using a MAP sensor would be a better idea than a MAF which could saturate quickly. So here is my idea: re...
by Evil
Sun Jan 14, 2018 4:22 pm
Forum: Bosch
Topic: Bosch Motronic red label 402 DME(need help getting started!)
Replies: 6
Views: 3912

The bin and XDF you can find in the download section will work with your 402 I think. For my 403 there is 2 different soft numbers and they worked both on mine. There can be some minor differences but anyway both are OK to start with (I think there is one version for 3-Series and another for 5-Serie...
by Evil
Wed Jan 10, 2018 8:16 am
Forum: Bosch
Topic: Bosch Motronic red label 402 DME(need help getting started!)
Replies: 6
Views: 3912

With good knowledge of how tables and headers works in motronic, you can easily found all you need from all the infos here on 403 and 413 😉 Why do you want a bigger maf? It can be useful for turbo or supercharger applications, but in naturally aspirated, maf is not a limiting factor with original...
by Evil
Sat Jan 06, 2018 10:12 am
Forum: Bosch
Topic: M3.3.1 motronic (413 and 506) tuning and XDF update?
Replies: 231
Views: 91624

Good info!
So that could be useful on a NV motor To avoid having a solenoid plugged (or dummy load) and then not to have To tune identically retarded and advanced tables, right?
by Evil
Thu Jan 04, 2018 1:41 pm
Forum: Bosch
Topic: M3.3.1 motronic (413 and 506) tuning and XDF update?
Replies: 231
Views: 91624

Ok guys, thanks :D
by Evil
Wed Jan 03, 2018 3:35 pm
Forum: Bosch
Topic: M3.3.1 motronic (413 and 506) tuning and XDF update?
Replies: 231
Views: 91624

Hi all, Does anyone knows any conversion factor for datas in D75C? (injectors dead time). Will have to re-tune it because I will change mines for slightly bigger ones. I searched on the web for the dead times of the OEM ones to try to calculate a factor with it for the 403 DME but wasn't able to fou...
by Evil
Sun Dec 17, 2017 2:35 pm
Forum: Bosch
Topic: Alpha n/ itb's on m50b25/dme 403
Replies: 43
Views: 19136

If you want richer overrun try To enrich with Idle fuel table 😉
It should work fine with or without maf (works for me in alpha-n)
by Evil
Sun Dec 17, 2017 10:13 am
Forum: Bosch
Topic: Alpha n/ itb's on m50b25/dme 403
Replies: 43
Views: 19136

Table for fuel cut RPM works perfectly! I can adjust fueling as I need with VE table and then with idle fuel table. Throttle tip-in is now close to Perfect, and it has also solved my stalling problem at stops. Many thanks olafu for these infos which have been very useful, and also To the others for ...
by Evil
Sun Dec 17, 2017 6:05 am
Forum: Bosch
Topic: Alpha n/ itb's on m50b25/dme 403
Replies: 43
Views: 19136

It's also followed by a 4x1 unknown descriptor in 403. Maybe this could be "engine deccel speed". And to talk about unknown descriptors: I'm quite sure there is also somewhere a dedcriptor for" engine acceleration speed", one for "Time" and one for "number of engines rotations". For the 2 lasts, I d...
by Evil
Sat Dec 16, 2017 10:57 pm
Forum: Bosch
Topic: Alpha n/ itb's on m50b25/dme 403
Replies: 43
Views: 19136

I have the same table in 403, scaling and data are not exactly the same but very similar, With X*40 it seems to be RPM values like you said!
I will try it today and tell you if it works :D
by Evil
Sat Dec 16, 2017 6:35 pm
Forum: Bosch
Topic: Alpha n/ itb's on m50b25/dme 403
Replies: 43
Views: 19136

I think the same a bout it. I did found 2 "double bytes " which were like the rev limiter and with à value around 1500rpm, but change those bites didnt have any effect on overrun RPM. But It can also be a single value in x*40.... I'm still searching but with thé exact value of overrun RPM i would ...
by Evil
Sat Dec 16, 2017 9:06 am
Forum: Bosch
Topic: Alpha n/ itb's on m50b25/dme 403
Replies: 43
Views: 19136

I did try To set Idle/PT thresold To 0 with no success unfortunately... Switching occurs anyway,maybe is there an offset...? Your idea wasnt bad, this could have been an easy solution 😉 I'm quite sure it is possible To change overrun RPM, i need To find the exact value and it sould be not so hard...
by Evil
Fri Dec 15, 2017 2:26 pm
Forum: Bosch
Topic: Alpha n/ itb's on m50b25/dme 403
Replies: 43
Views: 19136

My VE table is now close to be finished (need some adjustements at high loads and wot to perfect fueling. Enrichments are good, still have some trouble at throttle tip-in after overrun fuel cut, and the "overrun IAC position table" seems to have no effect to that. If I enrich more for throttle tip-i...
by Evil
Thu Dec 07, 2017 7:02 am
Forum: Bosch
Topic: Proper data logging on OBD1 via Arduino
Replies: 18
Views: 8646

As far as I am aware the econometer output is just a square wave pulse that is based on injector pulse width and speed, possibly only pulse width as the clocks already know speed and the OBC wires through the clocks. It is something I would like to be able to adjust actually as I like having the ca...
by Evil
Wed Dec 06, 2017 11:32 am
Forum: Bosch
Topic: Proper data logging on OBD1 via Arduino
Replies: 18
Views: 8646

Maybe it is possible To pick up load signal with the econometer output?
by Evil
Mon Dec 04, 2017 12:36 pm
Forum: Bosch
Topic: M3.3.1 motronic (413 and 506) tuning and XDF update?
Replies: 231
Views: 91624

I have play a litle with DC15/DC31/DC3B: (With clamps and damper table set to 255) Have raise DC31 a lot to have a "general" higher enrichment, then "finer" tune with DC3B. Then played with DC3B to extend or reduce lenght of enrichment (I had to reduce for the most part of it, it explains why my AFR...
by Evil
Sun Dec 03, 2017 8:32 am
Forum: Bosch
Topic: M3.3.1 motronic (413 and 506) tuning and XDF update?
Replies: 231
Views: 91624

200 is 10ms in load. But 623 has "200" only at max. rpms. That 0xD768 "latency" or "damper" is one thing what i would try to adjust, if i had ITB setup, or throttle valve size is changed. There is practically no delay when ITB:s are pressed from closed to WOT, so there is no need to use so much dam...
by Evil
Sun Dec 03, 2017 4:59 am
Forum: Bosch
Topic: M3.3.1 motronic (413 and 506) tuning and XDF update?
Replies: 231
Views: 91624

I agree with opinion about that.
On 403 all values for clamp are 200, but like you said it must be very engine dependant and the VANOS must be the reason of these differences.
by Evil
Sun Dec 03, 2017 4:23 am
Forum: Bosch
Topic: M3.3.1 motronic (413 and 506) tuning and XDF update?
Replies: 231
Views: 91624

Ok thanks for the precision! All the tests you can do are very helpful, we can really know what happens. I did some quick tests when coming back from work (I will speak with 413 tables numbers for more comprehensivity) O2 disabled to be sure there was no compensation from regulation, I added approxi...
by Evil
Sat Dec 02, 2017 8:33 pm
Forum: Bosch
Topic: M3.3.1 motronic (413 and 506) tuning and XDF update?
Replies: 231
Views: 91624

Again, everything is the same in 403. Secrets of the Motronics are falling :D That's some very good stuff you found here!! Rapid change of the TPS does not affect to the pulse width, except in MAF failure mode. (Alpha N) Can you tell a little more about that? If I understand correctly, could we say ...
by Evil
Sat Dec 02, 2017 4:49 am
Forum: Bosch
Topic: M3.3.1 motronic (413 and 506) tuning and XDF update?
Replies: 231
Views: 91624

good info! I have the same thing in 403, sizes are the same, scalings are similar (identical for the IAT/ECT table). Values are different on the first, but IMO just because different offsets in ignition timing formulas. For the second tables values are relatively different but the principle seems to...
by Evil
Thu Nov 30, 2017 12:28 pm
Forum: Bosch
Topic: M3.3.1 motronic (413 and 506) tuning and XDF update?
Replies: 231
Views: 91624

Yes, thats why I wanted To set the tables To 0 To "delete" the load correction that occurs with iac position changes, because my IAC has the connector still plugged but not yet To the intake circuit.

Tanks for these précisions :D
by Evil
Thu Nov 30, 2017 10:02 am
Forum: Bosch
Topic: Alpha n/ itb's on m50b25/dme 403
Replies: 43
Views: 19136

Some updates here, for not "overloading" the 413/506 thread. I have set to 0 both Idle valve position tables. Like I thought my VE table needed some adjustement, mostly at low throttle openings. Still have some problems at overrun/idle transition at stop, AFR take some time to come at 13 where it sh...
by Evil
Thu Nov 30, 2017 6:28 am
Forum: Bosch
Topic: M3.3.1 motronic (413 and 506) tuning and XDF update?
Replies: 231
Views: 91624

I think D6 might be rate of TPS change. If you make small movements to the throttle then you stay in the LH side but big rapid changes see it go to the RH side. I'm not 100% sure but I think the D6 axis is the voltage increase over X time. I get the same conclusion from what I see in tracing on 403...
by Evil
Wed Nov 29, 2017 4:59 pm
Forum: Bosch
Topic: M3.3.1 motronic (413 and 506) tuning and XDF update?
Replies: 231
Views: 91624

I think we can certainly say that in normal operation, TPS signal is used for Idle/PT and PT/switch, and as axis descriptor for the limp mode alpha/n table and for a 10x1 table in E45C. (same thing on 403) Values in the tables in D6E6 and D6F8 are min/max throttle position for Vanos activation, if I...