I think the part currently needed is a pressure sensor.  The VW dealership
here in Spartanburg SC can't locate the part from the number on the old part
(Bosch I think).

I have had persistent trouble with timing and the ECU, at least I think that
this is the main trouble.  It seems that there is little info available as
far as correct ECU settings.  A couple of very experienced VW mechanics who
have tried to get the kinks worked out for me have been more or less
frustrated into submission.  Perhaps I got a lemon ECU or wiring set up ?

Also someone has suggested that I replace the cap, rotor and ignition wires
with Bosch parts and then most of my rough running problems disappear.  For
such an expensive engine I expected that it would have come with top quality
parts, but this doesn't seem to be the case.  Anyone care to comment ? How
much would the Bosch ignition wires, rotor and cap cost me ?  Is this really
a possible solution, or just a further expense (I'm at $7k and counting by
now for this engine) ?

I realize that there are many happy TiiCo owners, which is why I went this
route against the better judgement of a mechanic friend, but my experience
has been anything but satisfaction.  I have also been contacted by others
who have had similar experiences to mine, so at least I'm not alone.  At
this point I'd be glad if I could just unload this van for what I paid for
the TiiCo engine and be done with it.  This is turning out to be a very
expensive and frustrating lesson.   :(

-James