You could adapt a throttle position sensor to replace the original wiper
rheostat, but I think the TPS is a mechanical device too so you would be
going sideways.  A TPS would still be cheaper than a AFM to replace.

If you don't want any mechanical wear you are left with an optical or
magnetic sensor.
The problem is both of these devices are basically high/low sensors and
don't offer a "range" of values as would be required by the original AFM
device.

TM- you say you don't want to spend the time and effort to convert to
Megasquirt, but by the time you re-invent the idle stabilizer and airflow
meter you could already be running a modern, cost effective, fully tunable
setup. *cough* MS...

Having said that, your efforts are appreciated and make for good reading.
Keep bringing the ideas forward.

-----Original Message-----
From: tinker man [mailto:tinkerman007@gmail.com]
Sent: Sunday, September 23, 2007 8:21 PM
To: pdooley
Cc: vanagon@gerry.vanagon.com
Subject: Re: Replacement AFM technology

Nope, I'm looking for an simple, inexpensive solution that will not
require any mechanical engineering or replacement of the AFM, and can
be installed right into the AFM as a simple upgrade (PCB ugrade), and
will not wear like the current solution...

On 9/24/07, pdooley <psdooley@verizon.net> wrote:
> TM- what you are looking for is a MAF interpolator.
> Like I said in a previous post, this technology already exists for Buicks
> (and probably many others); I'm sure it couldn't be too hard to implement
on
> the VW system.
>
> -----Original Message-----
> From: tinker man [mailto:tinkerman007@gmail.com]
> Sent: Sunday, September 23, 2007 5:36 PM
> To: pdooley
> Cc: vanagon@gerry.vanagon.com
> Subject: Re: Replacement AFM technology
>
> On 9/23/07, pdooley <psdooley@verizon.net> wrote:
> > Exactly.
> > Speed density with a simple, inexpensive MAP sensor.
> >
>
> And I'd prefer to keep it simple - a low-cost, direct drop-in AFM
> replacement, with no wearing parts.
> CTM
>
>