First thought is fuel filter.  And easy to swap out.

On Sat, Aug 10, 2019 at 9:35 AM Ray Brubaker <rayandmerle@gmail.com> wrote:

> Hi, Thanks for this great list. I have read it regularly for years but
> don't recall reading about what just happened to be me. I have a '89 Blue
> Star auto  original 2.1. I drove to the airport, 25 mi, to pickup my son
> and family. Returning with a full load, 8 people, ( I modified to use the
> two seat slide in middle seat with one rear facing seat at the door)
> youngest grandchild is 15, and a full load of luggage. Had gotten off the
> express way after cruising at 70 for about 15 min. and was in stop and go
> traffic for another 15 min. when I stopped at a red light. The engine came
> to idle then sputtered a few times and quite. Cranking, it would sputter a
> few times but wouldn't start. Pushed it into a median. Unloaded the back,
> checked the engine, found nothing amiss, checked that the fuel pump was
> working normally, tank was 3/4 full (tank was new about a year ago). We
> were running with AC on, temp was in mid range, not overheated. After about
> 10 min. I was able to get it to start and got going again. Slipped it into
> neutral and kept it revved a little at every stop but it still quite the
> same way in about 10 min. This time I felt the fuel pump while my son
> cranked the engine and thought I felt and heard something that may have
> been cavitation. Again after about 10 min. it started and we drove home,
> about 15 min., with no incident ( I left the AC off). Yesterday I checked
> fuel pressure, 33 psi with vac connected, 39 with it disconnected, normal.
> Checked leak-down, normal, about 1 psi in a half hour.
>
> It seems like it is fuel related. To me it acted like vapor lock but that
> shouldn't happen to a running injected engine.
>
> Thanks for any thought on this problem,
>
> Ray
>