As to what you write it is obvious that you have more than one
vacuum leak. Maybe othe idle problems. Fix the vacuum leaks first.
This is a common problem with many VW's.

            Eric                   86-VW4x4
            vw4x4@fyi.net          72-240z
            Pittsburgh, PA USA     1936-Chrysler

On Wed, 27 Jan 1999, Jaime Bates wrote:

> Still trying to get my 88' Vanagon staight.....
> Had a problem with the tach shooting up to 3000 rpm's and dropping to
> near shut off then taching back up again.I had alot of response from the
> list GREATLY appriciated,Now we've changed the wires( coil wire feel
> apart upon taking off!) cleaned all connections,tried to adjust
> idle.Whats happening now is it's staying up at 2000 rpm's any
> suggestions would be great.
>  Also have a purple hose connected to  the throttle body, aprox 2 years
> ago one end came off and motor was running at rough idle ,NOW if you
> disconnect it does nothing could this be one of my problems that
> something there is not working or clogged and is causing this ????
>