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DigiMatrix Samba Member
Joined: April 20, 2010 Posts: 449 Location: Up North Canada
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Posted: Sun Jul 18, 2021 2:43 pm Post subject: Re: WBX Emulator - real time data, onboard diagnostics and tuning |
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DanHoug wrote: |
How is the timing determined without a crankshaft position sensor?
i'd vote for AFM because of so many references to AFMs in the archives.
this entire project is so cool! |
The timing is determined using the hall sender:
As you can see the Hall window starts at 78 deg BTDC and closes at 6 deg BTDC (based on the correct static timing). Because I know the window duration is 72 degrees I use that to get the conversion.
The value I am returning is what is calculated within the ECU for advance from the timing tables. I suspect individual static timing needs to be added to the value I am displaying. I need to confirm that but I only have an old school timing light.
An yes, I have changed the label to AFM already _________________ _________________
'91 Syncro Westfalia
soon to be 2.5 liter stroker WBX 10:1 comp
Digifant ECU with knock sensor and custom
cylinder selective knock control by me
Last edited by DigiMatrix on Sun Jul 18, 2021 8:34 pm; edited 1 time in total |
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crazyvwvanman Samba Member
Joined: January 28, 2008 Posts: 9918 Location: Orbiting San Diego
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Posted: Sun Jul 18, 2021 3:03 pm Post subject: Re: WBX Emulator - real time data, onboard diagnostics and tuning |
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Great project and thanks for making it happen!
If you are up to considering changes I suggest dropping some of the decimal places. No need for fractions of an rpm for example.
Others needn't be more than 2 decimal places and just one would most likely suffice and be easier to decipher while driving.
thanks,
Mark |
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DanHoug Samba Member
Joined: December 05, 2016 Posts: 4761 Location: Bemidji, MN
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Posted: Sun Jul 18, 2021 5:15 pm Post subject: Re: WBX Emulator - real time data, onboard diagnostics and tuning |
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DigiMatrix wrote: |
The timing us determined using the hall sender:
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ok. that makes sense. need an accurate base timing with a light and then the rest falls into place. i really like having the injector pulse width available. _________________ -dan
60% of what you find on the internet is wrong, including this post.
'87 Westy & '89 Westy both 2.1 4spd
Past projects can be found at--
www.thefixitworkshop.com |
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Aryana Samba Member
Joined: November 09, 2015 Posts: 568 Location: Southern CA
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Posted: Sun Jul 18, 2021 11:34 pm Post subject: Re: WBX Emulator - real time data, onboard diagnostics and tuning |
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Hall sensor on the distributor |
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danfromsyr Samba Member
Joined: March 01, 2004 Posts: 15141 Location: Syracuse, NY
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Posted: Mon Jul 19, 2021 7:27 am Post subject: Re: WBX Emulator - real time data, onboard diagnostics and tuning |
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a basic android phone can be had for $29~$99 from Tracfone.
you do not need to add airtime if you are using just the basic android and wifi features. https://shop.tracfone.com/shop/en/tracfonestore/phones
and if you are planning to have it static mounted for monitoring all the time, I'd suggest a 2nd device so you can use your phone as you already have been
90weekender wrote: |
As mentioned...I'm an iOS user, but I found several online resources to run an Android Emulator on mu iOS devices. Some are cloud based and run in a browser. But I'd prefer an Android emulator app on my iphone/pad.
Is this an option?
I'd prefer not to purchase a device for this project.
Thanks
R |
_________________
Abscate wrote: |
These are the reasons we have words like “wanker” |
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ezee Samba Member
Joined: July 21, 2013 Posts: 14 Location: Vancouver, BC
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Posted: Sat Jul 24, 2021 1:38 pm Post subject: Re: WBX Emulator - real time data, onboard diagnostics and tuning |
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Any possibility you will make one for digijet? I would love one to dial in my 1.9L |
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DigiMatrix Samba Member
Joined: April 20, 2010 Posts: 449 Location: Up North Canada
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Posted: Sat Jul 24, 2021 1:53 pm Post subject: Re: WBX Emulator - real time data, onboard diagnostics and tuning |
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ezee wrote: |
Any possibility you will make one for digijet? I would love one to dial in my 1.9L |
It is doubtful, the ECU's this emulator works with already has hardware to output the data. I doubt the digijet ECU has the required hardware. It takes a lot of work to dissassemble the code, figure out how it works and then patch the code to output data. It wasn't too hard for the van digifant because I had already figured out what I needed for my G60 supercharged Passat and Corrado and the van ECU uses the same basic hardware only with some components left off the pcb because it doesn't have knock control, and closed loop idle control like the G60 code. _________________ _________________
'91 Syncro Westfalia
soon to be 2.5 liter stroker WBX 10:1 comp
Digifant ECU with knock sensor and custom
cylinder selective knock control by me |
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DigiMatrix Samba Member
Joined: April 20, 2010 Posts: 449 Location: Up North Canada
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Posted: Sun Jul 25, 2021 9:59 am Post subject: Re: WBX Emulator - real time data, onboard diagnostics and tuning |
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Update - more work done last night:
All 20 boards are built, bench testing done, need a few final touches, clean and in Van final testing to do. Documentation still needs to be completed but is started.
I hope people understand that these are "For Off Road Use Only". If tuning with these, it is at your own risk - improper changes can lead to undesirable results. _________________ _________________
'91 Syncro Westfalia
soon to be 2.5 liter stroker WBX 10:1 comp
Digifant ECU with knock sensor and custom
cylinder selective knock control by me |
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Aryana Samba Member
Joined: November 09, 2015 Posts: 568 Location: Southern CA
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Posted: Sun Jul 25, 2021 10:02 am Post subject: Re: WBX Emulator - real time data, onboard diagnostics and tuning |
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Sahweet!!! |
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DanHoug Samba Member
Joined: December 05, 2016 Posts: 4761 Location: Bemidji, MN
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Posted: Sun Jul 25, 2021 10:32 am Post subject: Re: WBX Emulator - real time data, onboard diagnostics and tuning |
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how in the heck did you do this much SMD soldering? and still have 20 working boards?!! amazing. _________________ -dan
60% of what you find on the internet is wrong, including this post.
'87 Westy & '89 Westy both 2.1 4spd
Past projects can be found at--
www.thefixitworkshop.com |
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Howesight Samba Member
Joined: July 02, 2008 Posts: 3273 Location: Vancouver, B.C.
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Posted: Sun Jul 25, 2021 11:00 am Post subject: Re: WBX Emulator - real time data, onboard diagnostics and tuning |
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ezee wrote: |
Any possibility you will make one for digijet? I would love one to dial in my 1.9L |
It would be possible to replace the Digijet ECU with the Digifant ECU to take advantage of this great platform. There are so many Digifant ECU's out there with harnesses, removed for conversions. Consider contacting Hans at Vanauru or SmallCar Performance or Stefan's Auto Haus and see what they might have on hand from all of their conversions. _________________ '86 Syncro Westy SVX |
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Steve M. Samba Member
Joined: July 30, 2013 Posts: 6827 Location: Fort Lauderdale, Fl.
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Posted: Sun Jul 25, 2021 11:28 am Post subject: Re: WBX Emulator - real time data, onboard diagnostics and tuning |
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Getting jitters now! 😁 _________________ This free advice is worth exactly what you paid for it.
There are seven days in a week. Someday is not one of them. |
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DigiMatrix Samba Member
Joined: April 20, 2010 Posts: 449 Location: Up North Canada
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Posted: Sun Jul 25, 2021 12:09 pm Post subject: Re: WBX Emulator - real time data, onboard diagnostics and tuning |
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DanHoug wrote: |
how in the heck did you do this much SMD soldering? and still have 20 working boards?!! amazing. |
Solder paste, hot air rework station, home made 3rd hand to hold components (in picture above), magnifing glass, tweezers and lots of patience. _________________ _________________
'91 Syncro Westfalia
soon to be 2.5 liter stroker WBX 10:1 comp
Digifant ECU with knock sensor and custom
cylinder selective knock control by me |
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natejohn Samba Member
Joined: February 20, 2020 Posts: 57 Location: Vancouver, BC
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Posted: Sat Jul 31, 2021 8:19 pm Post subject: Re: WBX Emulator - real time data, onboard diagnostics and tuning |
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DigiMatrix wrote: |
DanHoug wrote: |
How is the timing determined without a crankshaft position sensor?
i'd vote for AFM because of so many references to AFMs in the archives.
this entire project is so cool! |
The timing is determined using the hall sender:
As you can see the Hall window starts at 78 deg BTDC and closes at 6 deg BTDC (based on the correct static timing). Because I know the window duration is 72 degrees I use that to get the conversion.
The value I am returning is what is calculated within the ECU for advance from the timing tables. I suspect individual static timing needs to be added to the value I am displaying. I need to confirm that but I only have an old school timing light.
An yes, I have changed the label to AFM already |
Which manual does this page come from? _________________ 1990 Vanagon Westfalia |
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DigiMatrix Samba Member
Joined: April 20, 2010 Posts: 449 Location: Up North Canada
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Posted: Sat Jul 31, 2021 8:48 pm Post subject: Re: WBX Emulator - real time data, onboard diagnostics and tuning |
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natejohn wrote: |
Which manual does this page come from? |
It comes from V.A.G. Service 103 (SSP 103) for 1.8 ltr. engine with G-supercharger.
I did edit it to remove the reference to Idle stabilization because the WBX ECU doesn't use the ECU for idle stabilization. _________________ _________________
'91 Syncro Westfalia
soon to be 2.5 liter stroker WBX 10:1 comp
Digifant ECU with knock sensor and custom
cylinder selective knock control by me |
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hans j Samba Member
Joined: May 06, 2006 Posts: 2714 Location: Salt Lake City UT
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Posted: Sat Jul 31, 2021 9:54 pm Post subject: Re: WBX Emulator - real time data, onboard diagnostics and tuning |
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This is a 1985 distributor, so I'll have to measure a 86 and later, but it shows just over 59* as the window size and around 122* (actually closer to 121 after I zoomed in after saving the screenshot) for the section that's not a window.
If you really want to know what the value is, I'll grab one next week and measure it. I can only get a "reasonably close to TDC" value using an in cylinder pressure transducer, but it would at least give the distributor window degrees. _________________ 1986 Canadian Syncro Westy TDI - 1989 Syncro Single Cab - 2001 Audi S4 - 1981 VW Caddy ABA - 1980 VW Caddy EV - 1973 VW T-181 |
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dabaron Samba Member
Joined: June 21, 2018 Posts: 2559 Location: Philly, mang
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Posted: Thu Aug 12, 2021 7:29 am Post subject: Re: WBX Emulator - real time data, onboard diagnostics and tuning |
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sooooooooo.....
when can i buy one of these?
*bump* _________________ 1991 Vanagon GL Camper
i had no idea i wanted to be a mechanic
"burnin oil and cookin coils" -- Destructo
BiWerks Design, LLC |
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DigiMatrix Samba Member
Joined: April 20, 2010 Posts: 449 Location: Up North Canada
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Posted: Thu Aug 12, 2021 8:45 am Post subject: Re: WBX Emulator - real time data, onboard diagnostics and tuning |
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dabaron wrote: |
sooooooooo.....
when can i buy one of these?
*bump* |
Soon. All 20 are completely assembled just in the final testing stages. I have the emulator installation instructions complete but have to complete the instructions for Tunerpro and ALDLdroid. Too many summer distractions right now, but I will do a push this weekend. _________________ _________________
'91 Syncro Westfalia
soon to be 2.5 liter stroker WBX 10:1 comp
Digifant ECU with knock sensor and custom
cylinder selective knock control by me |
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dabaron Samba Member
Joined: June 21, 2018 Posts: 2559 Location: Philly, mang
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Posted: Thu Aug 12, 2021 10:58 am Post subject: Re: WBX Emulator - real time data, onboard diagnostics and tuning |
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DigiMatrix wrote: |
dabaron wrote: |
sooooooooo.....
when can i buy one of these?
*bump* |
Soon. All 20 are completely assembled just in the final testing stages. I have the emulator installation instructions complete but have to complete the instructions for Tunerpro and ALDLdroid. Too many summer distractions right now, but I will do a push this weekend. |
i'm just making sure i don't miss out
_________________ 1991 Vanagon GL Camper
i had no idea i wanted to be a mechanic
"burnin oil and cookin coils" -- Destructo
BiWerks Design, LLC |
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Steve Arndt Samba Member
Joined: August 01, 2005 Posts: 1780 Location: Boise, Idaho
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Posted: Thu Aug 12, 2021 10:58 am Post subject: Re: WBX Emulator - real time data, onboard diagnostics and tuning |
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Subscribed. This is a cool project.
What is the signal for on the single wire that gets soldered to the main board? _________________ Steve
Steve's 87 Syncro project |
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