codes P141 and P135 showing

2002 JEEP GRAND CHEROKEE
15,300 MILES
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PHILLIPBYNUM
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I have codes P141 and P135 showing and have purchased O2 sensors, Where exactly is the bank 1 sensor 1 location. Pictures would help a lot.

This is for emissions of course.
Oct 5, 2012 at 5:31 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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