The symptoms are: after driving about 100 miles on the freeway and then hitting some traffic the van seemed to hesitate when I pushed on the gas then it would accelerate.  If it had a carburetor like cars I know how to work on, I would say that the accelerator jet was clogged.  As it is, I'm sure it's some computer sensor thing.  The next day on the trip back I didn't have the problem.  '85 Westy, 1.9 L.

Background:  I've had the car since april and it runs well, but when coming back from Santa Fe this summer the car exhibited vanagon disease - that hesitation on the highway for a moment, then again, then again, then you stop wait and start up again and it's fine until it starts again.  I did notice that this occured less at night (when the temperature was below 100 outside).  Made it back and a month or so ago I did the capacitor fix on the AFM from this site: 

http://www.benplace.com/vanagon_intermittent_syndrome.htm

This new hesitation does not feel the same, and the weather was cool (65 degrees).  I'm off to BBB on Wednesday, so right now I'm just hoping for the best. If this is something obvious maybe I can fix it before then.

Thank in advance!

Dan
Los Angeles, CA
"Winky" the '85 Westy Weekender