RE: [DML] Bad Oxygen Sensor / Lambda Sensor

["Joseph Kuchan" <josephkuchan@xxxxxxxxxxx>]

You *might* be able to rehabilitate this with a propane torch, but a rich 
mixture can "poison" a lambda sensor and ruin it permanently.

-Joe Kuchan


>From: "Steve" <p2freak@xxxxxxxxx>
>Reply-To: dmcnews@xxxxxxxxxxxxxxx
>To: dmcnews@xxxxxxxxxxxxxxx
>Subject: [DML] Bad Oxygen Sensor / Lambda Sensor
>Date: Sat, 08 Apr 2006 05:26:46 -0000
>
>Group,
>
>Uploaded a picture on my server and want to pick your brain on this one.  
>This is the old
>oxygen sensor I removed.  It has about 3500 miles on it and installed 
>during 2001.  The
>black carbon soot is severe.
>
>Is there any service life left in this sensor?  Looks like the fuel mixture 
>is rich.  Symptons:
>rough idle at cold start up.  1000 RPM with surges to 1500 RPM.  After the 
>engine warmed
>up, idle drops back down to around 800 RPM.  A new sensor didn't solve the 
>idle problem.
>
>Here is the link: http://www.aufetechnik.com/IMG_0180.jpg.
>
>Thanks.
>
>
>Steve
>VIN#04421





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