Date:         Fri, 14 Jun 2002 08:52:35 -0400
Reply-To:     David Beierl <dbeierl@ATTGLOBAL.NET>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         David Beierl <dbeierl@ATTGLOBAL.NET>
Subject:      Re: Your early Morning/digifant/digitool brain teaser
Comments: To: Vanagon man <vgonman@MSN.COM>
In-Reply-To:  <OE41WUxOj8DIy4F0dgz00027f9f@hotmail.com>
Content-Type: text/plain; charset="us-ascii"; format=flowed

At 07:26 AM 6/14/2002, Vanagon man wrote:
>This morning I take it on a long run to do some work, and come slowing
>down to a red light, in drive (automatic tranny) Konks out.  Starts right
>back up, but is hunting badly( tach going feverishly between 800 and 1200
>rpm) I look at digitool, O2 sensor readings, -.26 to -.39...........Give
>full pedal, very hesitant, little bucking, and vroom off I go till the
>next redlight.  Same procedure.  This only happens when motor is fully
>warm, and the temp 1 and temp 2 sensor digitool readings are where they
>should be, as is the AFM.

What's the TII reading exactly?

That O2 reading is too low -- something is wrong with the ECU grounding.

There may be an idle stabilizer problem too, I dunno them except that
symptoms can include hunting at idle.  The board can have bad contact, or
just break.  It's forward of the RH taillight.

Is the throttle position switch indicating correctly on the digitool?  Does
the hunting stop if you give it just enough throttle to kill the TP light?

david



--
David Beierl - Providence, RI
  http://pws.prserv.net/synergy/Vanagon/
'84 Westy "Dutiful Passage"
'85 GL "Poor Relation"