For the last couple of years now I have had a problem with my 93
Vanagon  stalling.
The problem seems to happen at random. After the stall the engine will
not start, and it seems like it is flooded (smell of gas). After about
half an hour I crank it over, A puff of black smoke, and away we go
running like a champ. The problem seems to be becoming more frequent I
have replaced the Temp coolant sensor. I also picked up an ECU from a
junk yard and threw that in for a try. The Oxygen sensor was replaced
about 1.5 years ago.
Any Ideas ??