Tim my 85 does the same thing if the timing is on spec(weird) but completely
disappears if the timing is adjusted (advanced I think but I'm not sure) just a
bit beyond the spec amount. Whenever I get the beast tuned up I have to tweak the
timing to get around the hesitation.

Tony 85 GL "Westfailure"

Tim Belanger wrote:

> Just put a new CAT (last week) and a new Oxy sensor(2months ago) on my 87
> Wolfsburg.  I have been running the van the past few months with the Oxy
> sensor DISconnected,  because I noticed that when it was connected my engine
> would hesitate and take off VERY SLOWLY unless I was punching the pedal and
> gettin my RPM's over 2000.  My mechanic said it was either my CAT or Oxy
> sensor.  Well changed both and still have a VERY BAD hesiations.  It will go
> up to like 1500 RPM's as I leave a light or stop sign and just drop to idle
> speed RPM's or sometimes (not often, only a couple times) even stall.  Now to
> aviod the problem I can  dissconnect the Oxy sensor wich makes the van alot
> quicker and smoother accelerations, but lowers my gas milage.  Or if I leave
> it on I have to make sure I punch the gas everytime I take off to keep my
> RPM's up over 2000.  Making a pain to turn and not have things in teh back go
> all over, and just to take off without shifting the weight of the hole
> vehicle.  If someone has had this porblem b4 or knows of a fix for it please
> let me know.  I do not want to just start changing sensors and parts w/out
> some idea of why this is happening.
>
> Thanks
>
> Tim
> 87 Wolfsburg