Have a friend with a 85 westy, only 60k.  He will take it out and it  will
run fine for a 10 mile drive, other times he will take it out and it will  start
running really rough.  No power has to pull over and feather the gas  until
it clears up.
  He has replaced the 02 sensor, fuel filter, temp II, fuel  pump(although he
claims that with both the old and new fuel pump they wine quite  a bit), and
fuel pressure regulator.  He has also run fuel injector cleaner  through it.
   I have looked it over and there is no vacuum leaks.  I  have also cleaned
his mass air flow sensor track and moved  it slightly. His grounds also appear
to be in good shape.  This  van does not get driven in rain or snow, so
everything is in pretty good shape  if not next to new.
  My question is are the 1.9 liters also known to have the vanagon
syndrome??  I have the factory pigtail on my mass air flow I was going to  let him
borrow to run his van around and see if that clears up the  problem, are these
interchangeable between the 1.9 and 2.1 liter  engines??
   I was with him one time it was running rough, I unplugged the  02 sensor
while it was running but it did not make a difference, with the plug  still
unplugged I shut off the van and let it sit and restarted it, but it still  ran
rough.
  Any other suggestions??

Alan  H.
Mountain Top, PA
2-87 Syncros
03 VW Jetta TDI
90 Audi V8 Quattro  (for sale)
98 Ford  Contour 24V V6
_www.rustedbarncandles.com_ (http://www.rustedbarncandles.com/)

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