Fault codes

Mike Del Tergo mdeltergo at hotmail.com
Fri Jan 2 09:43:09 EST 2004

Bernies' comments echo my findings.  I tossed a slightly used O2 sensor in.  
New temp sensors were not immediately avail and I did not want to drop a new 
O2 in while still having a "bad" IM temp sensor.  No iimediate change in 
codes.  Next day, all codes gone and car is happily flashing 4444.  I never 
get the all clear codes in the 200, usually always have the 2111.
We'll see how long it lasts!

>I doubt that the IM thermistor is actually bad, rather a false code
>associated with other problems.  BTDT.  As I recall, somewhere in Bentley 
>the resistance vs. temp data for all the various thermistor temp sensors,
>allowing you to check the unit with an ohmeter.
> > From: "Mike Del Tergo" <mdeltergo at hotmail.com>

> >
> > Thanks Phil,
> > I should have added that I did all the requisite tests for the sensor 
> > all speced out OK, and all connections were/are "fine".  As I went about
> > trying to find a new sensor, I now have the 1111 code and an O2 code!  I
> > pulled the O2 and it was white chalky, not good looking!  I will replace 
> > tonight and see if that code goes away and temp sensor comes back.  Of
> > course did the "bad" > > temp sensor kill the mix enough to off the O2, 
>and will it again before I > > can find a replacement. > > And I still want 
>to clear the 1111 code.

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