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Date:         Thu, 28 Jul 2022 11:51:28 +0000
Reply-To:     "ddbjorkman@verizon.net" <ddbjorkman@VERIZON.NET>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         "ddbjorkman@verizon.net" <ddbjorkman@VERIZON.NET>
Subject:      Re: Fast idle and stumble
Comments: To: "davmcneely40@GMAIL.COM" <davmcneely40@GMAIL.COM>
In-Reply-To:  <CACvdLxNKNatadsXLT6m=0C3qXjdqJFk-uDR3pNvp=d+ESfk=VQ@mail.gmail.com>
Content-Type: text/plain; charset=UTF-8


And the wiring harness that goes with it!
Dave B.the Boston one




-----Original Message-----
From: David McNeely <davmcneely40@GMAIL.COM>
To: vanagon@GERRY.VANAGON.COM
Sent: Wed, Jul 27, 2022 11:57 am
Subject: Re: [VANAGON] Fast idle and stumble


So if the problem only manifests itself with the O2 sensor plugged in, put
in a new O2 sensor.


On Wed, Jul 27, 2022 at 6:23 AM Eric Caron <ericcaron96@comcast.net> wrote:


> Hi collective mechanical mind.
>
> Reporting back still not solved running issue on 2.3 with 1.9 fuel
> management.
>
> Many steps still not done as friends are busy and summer is full of
> activities.
>
> Issue is still.
>
> Van idles high.
> Screw for idle control closed to max.
> Checked for vacuum leaks and not finding them.
> Tried to check timing but idle too high about 1,000 rpm and now and then =
a
> surge to 1,200 RPM .
>
> Engine  stumbles only when O2 plugged in and engine warm.  From a stop
> press excellerator and 2 out of three times it will hesitate stumble or
> skip.  Then find itself and go.  No O2 and it seems fine.
>
> Still need to try a friends ECU
>
> I=E2=80=99m hoping to soon have most of a recently working 1.9 ignition s=
ystem to
> have for testing and spares.  I know diagnostics is better but still havi=
ng
> working spares will make maintaining the old system easier.
>
> I don=E2=80=99t need it to be perfect but this skip and running rich need=
s to be
> resolved.
>
> Other then this van is currently ready for a long distance trip.
> I recently discovered that a long term friend from bus events has a twin
> to my van, year, color, and even the engine and fuel management.  Current=
ly
> enjoying a trip up and down the east coast.  This gives me hope for a goo=
d
> running van in the future.
>
> Any additional tips are always appreciated.
>
> Eric Caron
>
> 84 GW 2.3 with 1.9 fuel management
>
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