So you're in Europe ?
I'm not. 

-----Original Message-----
From: tinker man [mailto:tinkerman007@gmail.com] 
Sent: Sunday, September 23, 2007 2:29 PM
To: Scott Daniel - Shazam
Cc: vanagon@gerry.vanagon.com
Subject: Re: Replacement AFM technology

Don't know yet, but it depends on cost of course. And shipping to
Europe is going to bring the cost way up...maybe I can find dead units
locally.
And basically, just to do the preliminary thinking, high image photo's
are enough...
What I'm interested most is in the electrical transfer function as
described. I wonder how nobody did any measurements with all the talk
about replacing the AFM. And now it seems like Gowesty indeed started
working on this earlier.
Cheers, TM

On 9/23/07, Scott Daniel - Shazam <scottdaniel@turbovans.com> wrote:
> Would you want to buy a used/old/maybe dead one to experiment with, take
> apart etc ?
> Scott
> www.turbovans.com
>
> PS - I'd be looking for a way to use an air mass meter myself - to retro
fit
> that newer much better device.
> Or even eliminate it entirely - check out Honda's for example -
multi-point
> EFI - no air mass or air flow meter.  GM too, many other manufactures too.
>
> -----Original Message-----
> From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
> tinker man
> Sent: Sunday, September 23, 2007 3:02 AM
> To: vanagon@GERRY.VANAGON.COM
> Subject: Replacement AFM technology
>
> Once again, me and my crazy ideas...
>
> With all the potential problems we're facing in our vans in general
> and it's fuel injection system specifically (which is most hard to
> debug in the van, with no on-board diagnostics support), the one I'd
> most want to get rid of is the AFM, who's mechanical deterioration is
> the hardest to fix, and finding a replacement is getting harder and
> harder (and expensive too, $200 just for a remanufactured unit).
> I remember reading lots of talk about this on the list, and wonder if
> after all the talk someone has actually come up with an alternative?
>
> So to get things going, a few questions:
>
> 1. Has anyone measured (or has the data of) the AFM transfer function,
> i.e. resistance or voltage output vs. air flow? For that matter, even
> a graph/table of resistance values/output voltage  vs. sensor plate
> movement would be helpful (it's probably logarithmic). Bentley
> provides a graph just for the temp1 sensor vs. temperature, but non
> for the variable resistance vs. air flow.
>
> 2. Anyone know what maximal airflow is to be expected in the air intake
> path?
>
> 3. Since I don't have a spare AFM to play with, does anyone have high
> resolution pics of an opened AFM? What's the function of the three
> black rings located around the pivot?
>
> 4. Does anyone know if the re manufactured AFM's offered at the
> BusDepot and others have a NEW resistance board or is it just the
> simple fix of moving the old one a bit sideways?
>
> Thanks,
> TM
>
>