Run a brake booster line check on the vacuum line from the engine to your
brake booster.

Smoke test the intake of the engine, make sure there's no leaks anywhere in
the system

Where abouts are you located?  I have the knowledge and tools to bandaid a
fix if you are located in BC, canada.  Unless you have verified you have no
vacuum leak, and also have a Air/Fuel ratio sensor, don't play with the
insides of the Airflow meter.  (that's what I would test, if you have a
Air/fuel sensor gauge)

Do you have a Cylinder head temp gauge?  Are you running hot?  I'm thinking
you are.

On Wed, Sep 23, 2020 at 1:17 PM al sinclair <alvanagon@gmail.com> wrote:

> Our '81 Vanagon (automatic transmission) tends to stall on accelerating
> from idle, e.g moving off after sitting at a stop light. It's fine if I
> keep the idle speed up a little with my foot on the accelerator. And while
> moving there's a hesitation for well over a second when pressing the
> accelerator after coasting before engine power kicks in - likely the same
> issue.
>
> Is there another way to increase the idle speed besides turning the "idle
> speed adjusting screw" (Bentley page 24.23)? turning that makes no
> difference to the idle speed. I realize that's not addressing the actual
> problem (of course it would be better to solve it) but increased idle speed
> would avoid the stalls.
>
> Any clues to solving the underlying issue would be great too, but I need to
> eliminate the stalls so my wife can drive the car.
>
> This is a different issue, because it's happened for years and the stall
> issue is new, but noting it in case it's relevant: at speed if the
> accelerator is pushed to the floor the engine hesitates, and only picks up
> if I back off the throttle.
>
> thanks
> Alan
>