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Unread 03-03-2012, 07:25 PM   #1
matt320
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2003 TJ Wrangler 
 
Join Date: Feb 2012
Location: fredericton, New Brunswick
Posts: 4
Where are the 02 sensors???!!!???

I have a bad o2 sensor in bank 1 position 2. I have tried to find any info online but seem to be looking for a needle in a haystack. I have a 2003 Jeep TJ with the 4.0 engine. Does anybody have any pics or an idea of which sensors are which? Thanks in advance!!!



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Unread 03-03-2012, 08:03 PM   #2
Jason
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2005 TJ Wrangler 
 
Join Date: May 2009
Location: Eaton Rapids, Michigan
Posts: 6,467
The one behind the cat.
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Unread 03-03-2012, 08:19 PM   #3
wwch99tj
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1999 TJ Wrangler 
 
Join Date: Apr 2010
Location: Felton, Delaware
Posts: 3,180
It would be behind the cat if you only have 2 o2 sensors

If you have 4 o2 sensors it will be on the front 3 cylinders pipe behind the cat
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Unread 03-03-2012, 09:12 PM   #4
matt320
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2003 TJ Wrangler 
 
Join Date: Feb 2012
Location: fredericton, New Brunswick
Posts: 4
thanks for the quick responses, it has 4 o2 sensors in total.
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exhaust diagram , exhaust system , help needed , oxygen sensor , repairs

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