Date:         Sun, 10 Nov 2002 11:28:24 -0800
Reply-To:     Doktor Tim <doktortim@ROCKISLAND.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Doktor Tim <doktortim@ROCKISLAND.COM>
Subject:      Re: New O2 sensor.....new problem....Please help.
Comments: To: Cotsford@AOL.COM
In-Reply-To:  <104.1f38ab1b.2b000484@aol.com>
Content-Type: text/plain; charset="us-ascii"; format=flowed

Always when replacing anything in the FI system the base mixture setting
needs checking and/or adjustment. Verify the setting at idle with
disconnects/hookups per Bentley. Know the ignition parts and timing comes
before this and compression balance/valves verified before that and rule
out vacuum leaks and verify grounds and wiring condition before that.

Sounds like you are turning screws just to see what happens. The odds on
being near specs are remote if that is what you are doing. If you don't
have the instruments and equipment to make these adjustments, hire someone
who does.

At 10:50 AM 11/10/2002, you wrote:

>Hi All,
>
>I recently did some "preventive maintenance" on my '84 Westy 1.9 digijet.
>81k miles.
>I replaced the temp II sensor, spark plug wires and O2 sensor, out of
>precaution because the old ones are probably 18 years old.
>Ever since, I have had a problem with a rough transition from idle.
>I have cleaned everything, adjusted the idle screws and mixture screws
>multiple times, all to no avail.