Hey, Chris. Wouldn't you know, my wife's Jetta was doing the same thing.
First I cleaned the spark plugs, and it was running good. She complained
again this week, so I checked the car again. This time it was a little dark,
I accelerated the car from the engine compartment, and it was bogging down
big time from idle only. But because it was dark, I could see the sparks
flying from the distributor cap I had replaced a few months ago, to cylinder
#4. I replaced the cap with the old one, problem gone. Check your cap and
cables.

Hector

> when i drive my '84 1.9L wbx for a while, then stop at a light and idle
for a
> few mins, then pull out again, there is no response at first when i step
on
> the gas, it bogs down and then finally starts moving when the guy behind
me
> is almost up in my rear bumper..  any ideas?  i've been adjusting the idle
> speed screw, it doesnt help.
>
> Thanks in advance-