Omega man 1969: That's definitely from the pre-EWS II period. Maybe DIS reports EWS I incorrectly as EWS II?
Yes I guess it must be incorrect, thanks for your help.
Once I've finished with the EML I will fit the Emulator back in the DME and switch each one of the Variant coding bits off and see how DIS recognises the unit, I've made a section in Tunerpro to allow me to do it very easily. It will be interesting to see if it responds as expected.
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I took the car for a spin today to see what the modified pedal felt like.......it was way too sensitive low down but it really felt good elsewhere.....the car feels so much more aggressive. I was going to trace the 11 x11 map ..... I left my laptop on top of the dash while I jumped out to move something out of the way....my laptop fell out and smashed on the floor killing the hard drive with it. It's such a pain as all my files including Tunerpro definition files I created are on that drive. I'm trying to read the drive now using my PC but it's making some horrible noises :-(
That will teach me to make a back up!
Last edited by Omega man 1969; 10-23-2013 at 11:58 AM.
Hello Omega man 1969,
I’m so sorry to hear that! What a bad luck! And you have really no backup? Not even an older version? This were absolute horrible.
There is a famous data recovery company in Germany – Kroll Ontrack. May be they can rescue something from your hard disk. They have also support contact in England. But rescuing data from damaged hard disks is unbelievable expansive.
Sad regards
Joachim
http://www.krollontrack.co.uk/
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As promised, I finished the PWG documentation today.
Stat check the EWS module for info in DIS...
95 840Ci, Calypso Red/Silver, 83k - 99 740i, Black/Black, 185k, Alpina Mods - 01 740i, Titanium/Silver, 40k, Sport Pkg
Complete Turnkey Diagnostic/Programming systems available...PM for details.
http://www.8Coupe.com - Please register, spot, and help the project.
Hey, this is good news! I don’t want think off losing the work of month and years by an accident like this. Luck in the bad luck. Congrats!!!
Did you seen the overall angle of the PWG? The original BMW documentation is wrong.
Also the measured start angle of the pseudo kickdown proofs our DIS readings.
Last edited by ArnoNym; 10-25-2013 at 02:20 AM.
Yes I did see that, so at what angle does the EML signal the DME to use WOT (VL)
The DME has 5 different fuel maps, idle, part throttle 1 part throttle 2 part throttle high load and then Wide open throttle which is not affected by lambda control.
Last edited by Omega man 1969; 10-24-2013 at 05:46 AM.
Great news you managed to save the data.
When I read that you lost it I was like NOOOOO!!
Good that it was not a SSD that crashed. I have had 2 that crashed on me and there is no chance of recovering data.
The model was faulty and got an upgrade though after reporting it
Yep ive heard a few SSD horror stories , I will make sure I back up files this time :-)
I guess the EML is learning the maximum PWG angle of the respective car and gives VL to the DMEs if this angle is reached. Yours at 64,72°, mine at 63,87° and revtors at 67,53°.
Very simple to do on manual cars, as higher values never occur when the pedal is on the metal. Not as easy as with the manual gearbox, but also not so difficult with the auto gearbox. The EML learns the 70° position while normal driving. For the kickdown angle of the PWG, the EML has to learn only one angle, as the driver suddenly presses the pedal down to the metal. Nobody will meet an angle between the 70° and the adjusted maximum angle of the pseudo kickdown of the PWG, as it needs a certain force to press the pedal in the kickdown possition.
But all this is just my guess and not proven facts.
Last edited by ArnoNym; 10-25-2013 at 02:19 AM. Reason: spelling
That seems unreasonably complex for something that can achieved by a few hardcoded angles. I have no proof to back this, but it's far more likely the VL is set at a fixed angle of, say, 60° in the EPROM for a manual E31. After all, there is a different EML for automatic and manual transmissions so there's really no need for the EML to learn the transmission type and pedal range.
That does sound likely...probably around 3 volts. Does DIS screen show when VL is active during the EML test? A slow pedal press while viewing the VL status should show which angle is used.
Earlier I mentioned there were 5 fuel maps....I wasn't thinking straight.....There are in fact only 4.... Idle, Part throttle, Part throttle high load and Wide open throttle. But there are 2 versions of each, I would imagine the other set of maps are used if the Variant switch for another country is selected or regular is selected instead of super unleaded as a fuel option. So maybe the 3 deg and 9 degree switch signal the EML to change between part throttle maps........once I get the emulator back in the DME I can check.
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I'll check that next time, thanks.
Last edited by Omega man 1969; 10-25-2013 at 02:58 AM.
OmegaMan: Try putting the drive in the freezer. Should give you a couple of minutes of usage until it heats up.
Current Cars:
1994 BMW 850 CiA (2017 km). My black on black Wokke'd 5.4l V12 autobahnmuncher
1992 Donkervoort S8AT (105k km). The mad dutch "Super 7." 300hp/ton of turbo power!
2013 VW Caravelle 4Motion (57k km). A dark wine red 180PS/400Nm 2.0 BiTDI rocketvan
2007 SMC F-Kart 50. 88cc of street legal go-kart hilarity, and a 1968 Cadillac Coupé DeVille Convertible 472.
"The best way to go broke-by-german-car is to buy an 8 series bmw with a v12" - Perc
"Torque is like pron. You can't really define it, but you will recognize it." - ElToro
Thanks ......Where did this putting it in the freezer idea come from.......It seems like if something goes wrong the internet quick fix is putting it in the freezer :-) I don't think that would do a HD much good...condensation and electronics don't go well together. I saved all the files in the end.
Actually it is possible. On several screens in DIS you can configure your own set of data to display (select reading and click right arrow, repeat for other readings and finally confirm with another right arrow click). Here's the PWG potentiometer angle and voltage and the VL signal in one screen:
... and just a fraction further:
The voltage jumps from 2.90 to 2.92 - there's no value in between (I used a screw mechanism to adjust the pedal in a controlled an accurate way). To conclude; I guess it's safe to assume the VL pedal angle is hardcoded to approximately 60° for a manual S70 (and probably M70 as well).
Last edited by revtor; 10-26-2013 at 04:59 AM.
Thank you so much revtor! This is new to me. Did not know DIS is configurable like this. I will try it out soon.
Current Cars:
1994 BMW 850 CiA (2017 km). My black on black Wokke'd 5.4l V12 autobahnmuncher
1992 Donkervoort S8AT (105k km). The mad dutch "Super 7." 300hp/ton of turbo power!
2013 VW Caravelle 4Motion (57k km). A dark wine red 180PS/400Nm 2.0 BiTDI rocketvan
2007 SMC F-Kart 50. 88cc of street legal go-kart hilarity, and a 1968 Cadillac Coupé DeVille Convertible 472.
"The best way to go broke-by-german-car is to buy an 8 series bmw with a v12" - Perc
"Torque is like pron. You can't really define it, but you will recognize it." - ElToro
The 4k RPM "bug" as I call it is due to the EML not passing WOT ground latch to the DME's. If you connect a datalogger to the WOT signal wires from EML to the DME's, you'll see that the EML doesn't latch to ground until 4200-ish RPMs.
This means that your DME's are never using the WOT tables until the latch occurs - - which means you're actually running on the high part throttle fuel and timing maps from idle to 4200.
I call it a "bug" because I have nearly 50+ datalogs from my twin turbo car and the phenomenon doesn't always appear. Some days it was there. Some days it wasn't. I vowed to disassemble the EML binary someday in order to figure out what the root cause was but never got around to it.
Hope this helps...
Thanks for the info John, very interesting. Was your car an Auto or manual ?.
I've got a new laptop now and some free time this weekend to do some more testing. I have a suspicion the 11x 11 map is road speed related .....I will set all the values to zero and see what happens.
Another interesting thing I found was that power to the O2 sensors is switched off as the low fuel map switches to high. I only found out by accident as I had my wide band sensors powered from the 12v feed at the O2 connector, every time I pressed the pedal more than a few degrees the sensors switched off.
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Good idea, it might work...that would allow me to have data hit tracing on the EML and DME at the same time. Thanks !
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