I am still having the same problem with my '87 Syncro Westy. To date I
have changed the O2 and Engine temp sensors, wires, cap, rotor, and
checked injectors, fuel pressure, all grounds and connectors. After
building a Digifant tool and installing it in the van I found out that
it still does it when I don't have the tool plugged in (ha, ha). All
sensors are working fine. BUT ... as soon as I plug in the O2 sensor it
all goes to hell, unplugged it run fine. So is it the ECU ??? I hate to
buy a used one (not reconditioned) because I would not know if the PO
drove around with the O2 sensor unplugged. Any ideas ???

Dana E Hager
Nazareth, PA

84 Vanagon GL
87 Westy Syncro

> Anyone have any new insights?
>
> Any new advice will be greatly appreciated.
>

> Background:  My 86 Vanagon, with an extraordinarily strong
> motor, dies on me from time to time.  I can bring it back to
> life -at any speed- by simply switching the ignition switch off
> and on.  It does not seem to respect any pattern in it's dying.
> It does it when it's hot, when it's cold, when it's wet, when
> it's dry, up-hill, downhill.....
>
> to be a loud clicking or slapping of the valve to the left
> of the mass air sensor.
>