Tom,
Yea, that's the dreaded "Syndrome". Install the capacitor fix, and it'll disappear!!!
John, you've got a '90 also, if you haven't put in the fix, you will soon, same thing happened to me!
Doug '90 GL

Tom wrote:

> Just returned from a round trip from Portland, Oregon to near San Diego California.  Down was totally uneventful.  About halfway back, I noticed a hesitation after briefly coasting, then re-accelerating.  This continued and got worse until it hesitated badly any time I backed off the accelerator.  The hesitation was like suddenly it just had no power.  If I went directly from coasting to "flooring it", there was no hesitation.  Being Sunday morning and needing to be back for Monday, I continued to drive it.  Great if I could drive at 80, but really crappy when I had to slow down.  Glad I did not have to explain to a Hiway Patrol:  "You see, officer, I can't stop accelerating or it will not run right".
>
> I pulled off when it got bad, let it cool down then continued.  Wound up stopping every hour or so.  Late in the trip, having the hesitation episode, but going down a hill, I turned the ignition off for 5 seconds, then restarted it.  Hesitation *mostly* gone, but coming back after half an hour or so.
>
> The van is an '87 2.1 without the capacitor or *harness* fix.  Engine has about 30k miles on a rebuild, new-ish oxygen sensor, Temp2 sensor and runs flawlessly most of the time.
>
> Isn't there a circuit to cut the fuel supply on deceleration?  Could this be malfunctioning?  Where would one look if so?
>
> Of course, the problem went completely away when I got to about 100 miles from home.
>
> Thanks for any input.
>
> Tom Salicos
> '87 Syncro Westy