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Date:         Tue, 23 Nov 1999 20:39:19 -0800
Reply-To:     Yann Buchanan <ynb@ATT.NET>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Yann Buchanan <ynb@ATT.NET>
Subject:      87' wolfie surging problem
Content-Type: text/plain; charset="iso-8859-1"


Need help solving following problem:


Van in2nd gear at around 3200 rpm, experiences uneven power, a kind of
surging;  not pronounced but noticeable.  Other than at this point, the van
runs & idles perfectly both when cold and warm.Disconnecting the 02 sensor
eliminated the problem altogether.  I subsequently replaced the 02 sensor
with a new oem one but this did not solve the problem.  The AFM is new &
meets spec.  The throttle switch has been adjusted to spec.  The coolant
sensor meets spec. (tested when cold -- coolant at 50 farenheit).  What's
left?  Vacuum leak?  Fuel pressure, pump or clogged filter?


Any ideas much appreciated,


yann buchanan
ynb@att.net
87'wolfweekender
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