Had same idle "surging" with 83 Vanagon-replaced idle sab. unit,tune
up,cleaned air sensor-still same.
Make story short I had to replace the exhaust pipe that o2 sensor sits
in-one of the 2 engine exhaust that join o2 pipe had a hole in it-welded-no
problem with surging idle since.These vans are so air sensitive.
Hopes this helps
Gerry
-----Original Message-----
From: Sam Scholten <vwvanagon@YAHOO.COM>
To: Vanagon@VANAGON.COM <Vanagon@VANAGON.COM>
Date: Thursday, April 23, 1998 8:19 AM
Subject: Re: Vanagon Blues

>---Goodtms4u <Goodtms4u@AOL.COM> wrote:
>>
>> This is my 1st posting.  I have a 85 Vanagon which runs great before
>it warms
>> up.  Then the idle speed occilates betwwen 900 & 1800 rpms.  It also
>loses a
>> lot of power and sometimes it's hard to pull away from a stoplight.
>At the
>> next stoplight it will perform normally.  This is my 1st wasserboxer
>so I know
>> nothing at all about one.  If anyone could provide some input I
>would sure
>> appreciate it.
>>
>
>I had a similar problem when I bought my '84. My idle used to "rev"
>like yours, and it turned out that my idle speed was set too high. The
>ECU will cut the throttle down until it is acceptable, then the engine
>will rev back up and the ECU will cut it down again.
>
>Your timing might be off as well. This is ususlly the cause for your
>van lacking power off the line.
>
>I think a regular tune-up will take care of your problems.
>
>Hope this helps!
>
>Sam
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