Is it possible to check to see if an O2 sensor? - JeepForum.com
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Unread 08-28-2013, 11:08 AM   #1
humpty99
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1999 TJ Wrangler 
 
Join Date: Aug 2013
Location: Zellwood, Florida
Posts: 12
Is it possible to check to see if an O2 sensor?

I have a 99 tj an wondering if there's any way you could check an O2 sensor to see if its bad?

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Unread 08-28-2013, 02:18 PM   #2
2KTJ40
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Join Date: Jul 2013
Posts: 57
I know you can use a DRB-III (Chrysler scan tool) and check functionality of the said O2 sensor with the engine cold....the scan tool is very expensive so I would recommend going to a dealer and having them check with one of theirs.
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