Question about Nissan Sentra

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Where is the oxygen sensor located for nissan sentra lec

Location of oxygen sensor

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  • Master
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Hi, It is usually located after the ex. manifold. On some cars there is 2 O2 sensors. Look in your service manual for further info. If you suspect it is faulty replace with same kind. Good luck.

Posted on May 28, 2015

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  • Nissan Master
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This is from the web, yahoo answers I think




Best Answer: That was the dumbest answer. On a four cylinder engine a o2 sensor is reading the air fuel ratio from the exhaust of all four cylinders. There is a o2 sensor before and after the catalytic converter. Bank 2 is refering to the o2 sensor after the cat. When u replace it you need to inspect the cat and make sure its not coming apart from the inside. If it is you need a new one. If u cant afford one then i would just hollow out the cat with a large screwdriver. If u hollow it out ur car wont pass emission testing.
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Posted on May 28, 2015

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