Alain,

There is a minor improvement in the Vanagon-Syndrome-Air-Flow-Meter-Fix
Harness in the "A" version.

Both versions use an operational amplifier (op-amp) along with 6 or 7
resistors and capacitors in a circuit that stabilizes the signal from the
AFM.  The "A" version has an additional capacitor in the circuit, assumably
an attempted improvement in the stabilization.

Some have had some level of success with a simple capacitor wired between
the connections to the AFM (Google "vanagon syndrome capacitor fix").  While
this may fix some of the symptoms of "Vanagon Syndrome", I suspect the VW
fix may be a more "complete" solution.

I like the comfort of having one of the VW Fix harnesses in my Vanagons.  It
is very unnerving when you experience the bucking of Vanagon Syndrome,
especially in situations like heading up to the Sierras over I-80 for a ski
weekend with snow blowing, trucks passing, and the van packed to the gills
with family and ski equipment.  That is not a good time to simply pull over
and restart the engine to pause the Vanagon Syndrome effects!  That happened
to our family some years ago, and I still get a pit in my stomach thinking
about it.

Craig in Cupertino
1987 Syncro Westy
1987 Syncro GL

-----Original Message-----

Thank you so much Howard... So I'll go for the part with a A then, although
I do not know what they changed to it...Alain

>
>
>> Sorry to come back with this again, but could someone tells me if
>> there is a difference between harness 025 906 302 and harness 025 906
>> 302 A ...
>> Thanks
>> Alain
>> Westy 1986