Where are the 02 sensors???!!!??? - JeepForum.com
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post #1 of 4 Old 03-03-2012, 06:25 PM Thread Starter
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2003 TJ Wrangler 
Join Date: Feb 2012
Location: fredericton
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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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post #2 of 4 Old 03-03-2012, 07:03 PM
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The one behind the cat.
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post #3 of 4 Old 03-03-2012, 07:19 PM
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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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post #4 of 4 Old 03-03-2012, 08:12 PM Thread Starter
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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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