Date:         Mon, 6 Nov 1995 09:50 EST
Sender:       Vanagon Mailing List <vanagon@vanagon.com>
From:         Peter Orban <ORBAN@nrcamt.iamt.nrc.ca>
Subject:      Re: VANAGON digest 674

> Date: Wed, 01 Nov 1995 15:48:00 -0400 (EDT)
> From: Porter_Fred%PAX9@mr.nawcad.navy.mil
> To: VANAGON%LENTI.MED.UMN.EDU%INTERNET@mr.nawcad.navy.mil
> Subject: cold start/idle problems with 2.1 digifa
> Message-ID: <PAX9/A0024026/P05/PAXMB1*@MHS.NAWCAD.NAVY.MIL>
>
>
> Hello all.........
>
> When I start my engine after it has sat all night (ie. a cold start) it will
> not stay running unless I keep slight pressure on the gas pedal.  It will
> also stall while idling at a stop light.  This behavior continues until the
> engine has warmed up, then it runs fine.
...
>  -do these symptoms really indicate a bad temp sensor?
>  -did I get the right sensor and am I just blind?
>

The digifant ECUs have a self test built in them, at least for the '88
California Golfs and Jettas. I would suspect the others have the same
firmware with different lookup tables. The Bentley manual details the
set-up and the codes.

Hope it helps, Peter
--
Peter Orban
National Research Council of Canada
Internet: peter.orban@nrc.ca