| Author |
Message |
zimflux
Samba Member
Joined: September 30, 2015
Posts: 192
|
 Posted: Mon Jul 05, 2021 7:19 am Post subject: Re: AFM replacement wiper board |
 |
|
Curious how these boards are holding up?
_________________
84 1.9 Westy |
|
| Back to top |
|
 |
truepaul
Samba Member
Joined: August 30, 2017
Posts: 36
Location: Central Connecticut
|
| Posted: Tue Feb 22, 2022 11:40 am Post subject: Re: AFM replacement wiper board |
|
|
| zimflux wrote: |
| Curious how these boards are holding up? |
YES !! ------ Please let us know !! -----------
I bought two of these Chinese boards, I want to install one and see if it's an improvement. However, I thought I'd wait to hear if these boards have some reasonable longevity before I do the AFM teardown and replace an existing board. I'd like to do it once, and not have to swap the old board back in, if these replacement boards don't hold up. So let us know what you've observed! |
|
| Back to top |
|
|
ALIKA T3
Samba Member
Joined: July 30, 2009
Posts: 6348
Location: Honolulu,Hawaii and France
|
|
| Back to top |
|
|
DanHoug
Samba Member
Joined: December 05, 2016
Posts: 4772
Location: Bemidji, MN
|
| Posted: Tue Feb 22, 2022 1:17 pm Post subject: Re: AFM replacement wiper board |
|
|
Mine is still in and working well. I’d do it. No difference in mpg but I tuned my spring tension to what I wanted (performance vs mpg). Hardest part is getting worse or screw out but once that is done and small Allen’s put in their place, it is quick and easy to swap boards.
_________________
-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 |
|
| Back to top |
|
|
truepaul
Samba Member
Joined: August 30, 2017
Posts: 36
Location: Central Connecticut
|
| Posted: Tue Feb 22, 2022 3:12 pm Post subject: Re: AFM replacement wiper board |
|
|
| DanHoug wrote: |
| Mine is still in and working well. I’d do it.. |
Good to know!! Any idea how many miles you've logged on the new board? |
|
| Back to top |
|
|
montanasurfer
Samba Member
Joined: March 06, 2014
Posts: 319
Location: United States
|
| Posted: Thu Feb 24, 2022 11:32 am Post subject: Re: AFM replacement wiper board |
|
|
This thread has blown my mind! I didn't think these carbon tracers were available! I had the belief that this was the weakest point in the Digifant EFI system and would be the first thing to become unreplaceable!!!!!
My question is this.... What makes these boards different and how does each board impact the vanagon differently?
My AFM currently has this version of the board in it:
https://www.aliexpress.com/item/32974078898.html?spm=a2g0o.seodetail.topbuy.1.3607155d6OVib6
However, there are multiple other boards with different part numbers that have the same form factor:
https://www.aliexpress.com/item/32974078898.html?s...-recommend
https://www.aliexpress.com/item/32974486153.html?s...-recommend
Additionally, I see that DanHoug's new board is a different Part Number than the board in my 87 Van and what was originally in his AFM. This makes me wonder how many AFMs built for other vehicles have been put into other vans. Or more importantly.... does it matter?
_________________
1987 Vanagon GL - Wolfsburg Edition |
|
| Back to top |
|
|
truepaul
Samba Member
Joined: August 30, 2017
Posts: 36
Location: Central Connecticut
|
| Posted: Fri Feb 25, 2022 8:13 am Post subject: Re: AFM replacement wiper board |
|
|
| montanasurfer wrote: |
| This makes me wonder how many AFMs built for other vehicles have been put into other vans. Or more importantly.... does it matter? |
I'm not sure exactly what you're asking, but here's my 2 cents.
The VW Vanagon Digifant system, according to some web links I followed, is a digital pulsed system that was partly designed by Volkswagen, with a slightly simpler control map than the Bosch Motronic system.
The Bosch Motronic AFM of this era was used in VW, Porsche, BMW, Audi and maybe others (and even a BMW motorcycle). So there's a ton of these units around that appear very similar. I have no idea about the number of different wiper boards made, as I haven't found mention of it online. But one has to assume the output signals are significantly different, as the ECU design, etc. was different.
The only unit that I've seen referred to as a drop in replacement for the Vanagon AFM is the Bosch 0280202106 (88-92 Jetta) AFM. This was from a listing from a fellow selling the Jetta AFM's, so buyer beware. I bought one and it does appear identical. I've not tested it yet.
The China boards are copies of selected Bosche boards, and we're relying on their listing as to what boards/AFMs are equivalent. I'm glad to hear that Vanagon owners have had good results. The ones I purchased look different from Doug's, I assume it was a later production run.
I hope this helps. |
|
| Back to top |
|
|
montanasurfer
Samba Member
Joined: March 06, 2014
Posts: 319
Location: United States
|
| Posted: Thu Jul 13, 2023 1:09 pm Post subject: Re: AFM replacement wiper board |
|
|
I'm happy to report that an AFM with a Chinese board just passed California Smog! Ever since I did this repair, my van has been running great! Highly recommend!
_________________
1987 Vanagon GL - Wolfsburg Edition |
|
| Back to top |
|
|
|
