ok here  goes i hope that you  can  offer some  help  with my  problem
>I  have  a  1988  gl vanagon  i have  drove it  since  i  bought  it  only
>a week  ago  about  500  miles
>I bought gas for it  one night  it  ran fine till  the  next morning  i
>drove it  about  15 miles  after getting  gas
>parked it ,then got  back  in it  the  next  morning after it had sat  over
>night  ,the  outside temp  was  about  24 deg. i  let  it  warm    for
>about
>5min  or so  . I  got  in  it  to go to work about t 32  miles  away about
>7-10 miles  into  the  trip  it  starts to lose power then  at a stop
>light
>it  shuts  off.  i  restart it  and  try  to continue  with my  daily
>commute to work it starts to  chug and  stutter  and   chug ( I am
>thinking
>water in  the  line  )but  i have  since  drained the fuel out  and  put
>in
>i  think good  gas and  2  cans of  dry gas   but  to no avail. also  it
>is
>using   aloooot  of  gas it  has went  through  1/4 tank of  gas in about
>50  miles .I  have  also  replaced  the  fuel filter.( I  am  a 15 year air
>cooled  veteran) I hope  that  you  can help  i  do  my  own work  so
>anyone  that could  help  thank you
>          ok ok I  know that  there is a answer out  there for what   i  am
>going
>through  with my  88 gl  please o mother  please if  anyone  could  help
>let  it  be  now .  my  new  addition  to the  family seems  to have this
>problem
>it  runs  rough it  stalls and  it  chugs and  bucks it  produces black
>puff
>as it  does its thing. when it  gets to operating  temperature  it  does
>this  while it  is  cold  and  not  up  to  the  temp  it  is  ok. i have
>replaced the fuel filter and  that  is it  .I  am an  (15 year veteran  for
>air  cooled  vw's) this  is  a  whole new  ball  game  for  me please  if
>there  is  anyone out there  to help  i  would  love to  hear from you . I
>am going  tomorrow  to get a fuel  pressure gauge but  i have no idea  what
>it  is suppose to be how  much  pressure is suppose to be on the system ?
>how  long  is  the pressure suppose  to be up  to that  mark  after engine
>cut off has  there  been any recalls been on  the vanagon ?is the a  fuel
>pressure regulator ? do they  go  bad  could this  be a  mass air flow
>meter
>problem ? does  the cyl  head temp  switch have anything to do with this
>problem? if  so where is it  located?I  need help  !
>i have  worked  on it for 3 days  and still no fix  now the water temp
>flashes but does not stay  on
>is it  the fuel pressure reg. valve stuck ?
>Darrel
i  have replaced  both  sensors  that are in the  thermostat housing  and
well my gauge  on the dash now works but  the  problem is  still there. next
i  unplugged the o2 sensor  and bam it  runs better but  i drive  it with
out the  sensor  plugged  up and  it  is  running  better now  than it has
ever ran what the hell  is going on here (anyone  figure  this one  out ?)