I have said it before and some disagree But
diconeecting the 02 sensor is not a bad thing especialy if the exhaust is
fouled from other conditions
I know that if you plug a new sensor in when you have driven it full rich
for a day or two only fouls the new sensor. The exhaust sysytem is so sooted
continues to foul the sensor even if the orignial problem is fixed

my list of things to check are
throttle switch
coolant sensor
ground wires at the left head
 and a good old fashoned pin test realy helps

change the oil right away if the gas mileage has dropped to the low teens

Bob Donalds

----- Original Message -----
From: "Sam Walters" <sam.cooks@VERIZON.NET>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Wednesday, August 30, 2006 3:55 PM
Subject: Re: Did the mechanic do something?

> Charles,
>
> Attached are some files for assistance in diagnosis of fuel injection
> system difficulties.
>
> Disconnect the O2 sensor and see if the problem goes away.  If so, it is
> either the O2 sensor or its wiring.  You can run this way for a day or
> two to compare.  Wiggling the wire is no test of the O2 sensor.
>
> These files will give you lots of info on particular symptoms and the
> sensor or other part that is likely to create that symptom.  It is a
> good bit to read but it is very good.  These are things I have
> downloaded from the list or searched out of its archives.
>
> Sam
>
> --
> Sam Walters
> Baltimore, MD
>
> 89 Syncro GL, Zetec Inside
> 85 Westy Weekender
> 85 Mercedes Benz 300D Turbodiesel - to become veggie oil powered
>
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