Question about 2001 Nissan Sentra

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Which sensor is the bank 2 sensor 1 for a 2001 nissan sentra?

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The Sentra is a four cylinder single bank engine. It will have bank 1 sensor 1 which is the upstream O2 sensor (before the catalytic converter) and bank 1 sensor 2 which is the downstream O2 sensor (after the catalytic converter). Only V6 or V8 engines have bank 2. Hope this helps.

Posted on Sep 17, 2011

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Unless I am missing something the 2001 nissan sentra has two four cylinder engine options.

The bank refers to which side of the engine. a four cylinder only has one bank so there can only be a bank 1. A v-6 or v-8 will have two banks since there is a bank of cylinders on each side of the engine. So there will be a bank 1 which is always the same side of the engine as the number one cylinder, and a bank 2 which is always the other side of the engine.

Sensor refers to upstream or downstream of the catalytic converter. Sensor one is upstream or before the cat. Sensor 2 is downstream or after the cat.

If you entered the wrong year or wrong vehicle or if you can post the actual code I will see if I can help you further.

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

Posted on Sep 17, 2011

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Posted on Jan 02, 2017

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SOURCE: location of a o2 sensor 2001 nissan maxima

bank 1 refers to the side of the engine that #1 cylinder is on , and sensor 2 refers to downstream , after the catalytic converter. , this link shows bank 1 on a 2001 nissan maxima V6 being on the firewall side . if you had a 4 cylinder it would be downstream after the catalytic converter .

http://www.autozone.com/N,26200242/shopping/specsSelect.htm



Posted on Jan 04, 2009

  • 1986 Answers

SOURCE: where is 02 bank 2 sensor 1 placement on a 2001

Bank 1 means it's on the same side as your cylinder 1
Sensor 1 is the sensor that is located before the catalytic converter.

Posted on Sep 10, 2009

  • 1986 Answers

SOURCE: 2000 Nissan Sentra 1.8 with P071 trouble code, too

do you mean P0171??
If so, then it means your MAF sensor may be dirty and needs to either be cleaned or replaced.
It could also mean there's a vacuum leak downstream of the MAF sensor

Posted on Oct 13, 2009

Testimonial: "Confirmed what I suspected. Thanks, Lesjude"

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1 Answer

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1 Answer

Where is 02 bank 2 sensor 1 placement on a 2001 nissan sentra


Bank 1 means it's on the same side as your cylinder 1
Sensor 1 is the sensor that is located before the catalytic converter.

Sep 10, 2009 | 2001 Nissan Sentra

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