[T3] Full load stop on the MPS

[Mike Fisher]

Tram adjusts the AFR/MAPS on my'69 FI/AT with a small screw drive and o2
sniffer clipped to my tailpipe.

On Sat, Aug 4, 2018 at 11:07 AM Jim Adney <jadney at vwtype3.org> wrote:

> On 3 Aug 2018 at 20:01, Keith Park wrote:
>
> > now if I cant get the late system to track properly on my 2L, that
> > implies that its more than adjustment that tunes a particular system to
> > the car its on, but is it something different in the MPS, like
> > different armature, spring tension, aneroids or is the difference only
> > in the Brain?  or BOth?  Hmmmm...
>
> Over the D-jet years, Bosch made over 100 different brains, over 100
> different pressure sensors, and probably several hundred different
> distributors. Each of those combinations was tuned for a particular set of
> intake parameters, fuel quality, and market (emission) requirements.
> There's
> no way one could assume that you could grab an alternate set of hardware
> and just dive into the pressure sensor and make everything work nice.
>
> If you expect to succeed, you need a starting point that's as close as you
> can
> get to the engine you have, then work from there. At least the Type 3
> stuff is
> air cooled, but you're still "wandering around in a multi-dimensional
> parameter space" (as a friend and former co-worker once phrased it) hoping
> to find the sweet spot.
>
> --
> *******************************
> Jim Adney, jadney at vwtype3.org
> Madison, Wisconsin, USA
> *******************************
>
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-- 
Eugene, Oregon

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