Oxygen sensor.  Disconnect it and see if the situation
improves.  If it does, it is the likely culprit.

Z

--- Jay L Snyder <Jay.L.Snyder@INVISTA.COM> wrote:
> Have you checked the fuel pressure?  The regulator
> can go bad and hold up
> excessive fuel pressure.  Mine actually blew off the
> fuel line by the
> starter.  They can get crapped up.
>
>
>       Jay
>
>
>
>
> jesse johnson
> <jjmojo@BLAZENET.NET>@gerry.vanagon.com> on
> 12/08/2003
> 10:18:10 PM
>
> Please respond to jesse johnson
> <jjmojo@BLAZENET.NET>
>
> Sent by:    Vanagon Mailing List
> <vanagon@gerry.vanagon.com>
>
>
> To:    vanagon@GERRY.VANAGON.COM
> cc:
> Subject:    Ok...still running rich problem....
>
>
> Hey all,
> I am still having problems of a rich running
> condition on my digifant
> fuel injection.
> These are the things i have tried.... and checked..
> 1. Replaced temp sensor number two.
> 2. checked afm per bentley test... checked out ok.
> 3. Cleaned up ground for hall sender.
> 4. Checked the timing and adjusted idle.
> 5.Cleaned grounds under ignition coil.
> Plus...replaced ground strap
> from cylinder head to body, that was torn.
> Still having the same problems. I am going to pull
> the plugs tomorrow
> to see if just cylinder or all are running rich.
>
> I am now convinced that the van is running rich when
> cold...but also
> when warm. Although the rich running condition seems
> worse when cold
> than hot. But it i am still seeing a bit of black
> smoke when it's
> warmed up when in neutral and i rev the engine.
> Again...this is not oil
> smoke....but smoke from to much fuel. I can smell
> it.
> I am sure that my hard starting of the van if it
> stalls before warmed
> up is related to a rich running condition. Starting
> while the engine is
> warm is also not the best...but it does start with a
> few cranks and a
> little throttle.
>
> So my questions are this...
> 1. What other grounds should i check and where are
> they located? I am
> working outside in the cold...so the quicker i can
> find them... clean
> them and put them back together the better.
> 2. Does the hall sender have anything to do with
> cold start? I know its
> working because the van runs. But...does the hall
> sender in a digifant
> world do anything else?
>
>
> Any help would be great...
> Otherwise i may have to suck it up and take it to
> the local VW shop....
> IF there is anyone on the list that lives close to
> YORK,PA that has a
> garage that i could use for a day to do the ground
> trouble shooting so
> i don't have to freeze while trying... that would be
> wonderful. My wife
> will make you yummy homemade cookies!!!
> thanks,
> jesse
> 89 carat
>
>
>
>
>
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