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2001 Nissan Sentra 1.8L o2 sensor location

4 o2 sensors 2 manifold 2 under the cat converters

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6ya6ya
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Posted on Jan 02, 2017

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johnny5846
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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

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SOURCE: o2 sensor location 1997 pontiac grand am 2.4 4 cyl auto trans

BANK 1 SENSOR 1 IS THE ONE IN THE EXHAUST MANIFOLD. BANK 2 SENSOR 2 IS BELOW THE CATALYTIC CONVERTER.

P0171 SHOULD GO AWAY WITH A GOOD O2 SENSOR BUT DO CHECK FOR VACUUM LEAKS TO BE SURE. 3.1/3.4L ENGINES HAVE A BAD DESIGN INTAKE MANIFOLD GASKET, THE LEAK OIL, COOLANT, AND AIR.

Posted on Jul 13, 2009

bschilz
  • 2049 Answers

SOURCE: location of the bank 1 sensor 2 O2 sensor on a 2001 ford escape

B1 means the sensor is located on the same bank of the engine that has the #1 cylinder. B2 is located on the opposite bank.
S1 means the sensor is located BEFORE the catalytic converter
S2 means the sensor is located AFTER the catalytic converter

You didn't say which engine you have, so I've included the diagrams of both 4 cyl and 6 cyl so you can see the banks

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Posted on Oct 20, 2009

  • 752 Answers

SOURCE: I have a 2003 Nissan Sentra SE-R Spec V. o2 sensor location?!?1

theres always one on the intake manifold working its way down to catalytic convertor is the oxygen sensor 1 heater circuit(pre cat conv) signal while terminal #25 is oxygen sensor 2 heater circuit (post cat conv)

Posted on Feb 12, 2010

  • 1 Answer

SOURCE: On a 2001 chrysler sebring coupe lxi 3.0 where is

my 2001 chysler sebring lxi 3.0 liter will not start and the starter is brand new

Posted on May 25, 2010

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1 Answer

What are the probable causes of DTC P0430?


code p 0430 refers to catalytic converter system , bank 2 --efficiency below threshold=== causes --cat converter---wiring---HO2S 2
( that is the sensor in the exhaust manifold or pipe before the cat converter for bank 2--front bank)

Mar 27, 2016 | 2001 Nissan Sentra

1 Answer

There are 2 upstream o2 sensors on cadillac sls and 2 downstream. There are 2 exhaust manifolds on the 8 cyl 4.6 L bank 1 sensor 1 which is backside manifold and bank 1 sensor 2 which is front manifol


the back manifold ( closest to the fire wall) is bank l
there are not 2 x O2 sensors up stream
they are heated oxygen sensors (HO2S) and are in the manifold or exhaust pipe before the cat converter
The 2 x O2 sensors are after the cat converter in the exhaust pipe
so bank 1 sensor 1 is a HO2S sensor
there is a difference in the sensors as the HO2S report exhaust gas conditions to the ECM for fuel /air adjustments , have 4 wires and are heated to read the gas correctly
the after cat converter sensors ar O2 sensors and report on the cat converter action to further adjust the air /fuel mix in the ECM

Mar 17, 2016 | Cadillac Cars & Trucks

1 Answer

3l, 6 cyl (California emissions). Where is the 4th O2 or (A/F) sensor?


HO2S( heated sensor) are before the cat convertor either in the manifold or exhaust pipe to the cat converter
O2 sensors are in the exhaust after the cat converter/s
I am drawing the difference because they are not all O2 sensors as each has a different operation for the position in the exhaust
the missing one will be in the exhaust manifold or pipe at a convenient position for servicing before the cat converter

Jan 09, 2016 | 2002 Toyota Camry

2 Answers

Where is the oxygen sensor located for nissan sentra lec


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.
Source(s):

May 27, 2015 | Nissan Sentra Cars & Trucks

1 Answer

O2 Sensor Bank 1 Sensor 2 location


standing in front of the vehicle looking at the engine bank 1 sensor 2 is the sensor after the cat converter on the bank on your left
bank one is the left cat ---bank 2 is the right cat. Sensor 1 is the one before the cat and sensor 2 is the one after the cat on either side

Mar 14, 2014 | 2000 Nissan Sentra

2 Answers

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


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

Sep 17, 2011 | 2001 Nissan Sentra

2 Answers

I have a 2003 Nissan Sentra SE-R Spec V. o2 sensor location?!?1


theres always one on the intake manifold working its way down to catalytic convertor is the oxygen sensor 1 heater circuit(pre cat conv) signal while terminal #25 is oxygen sensor 2 heater circuit (post cat conv)

Feb 12, 2010 | Nissan Sentra Cars & Trucks

1 Answer

2001 Nissan Maxima service engine light stays on code from Auto Zone scanner is PO139 and PO138. What should my next step be to solve this problem.


code p 0138 refers to 2 items
1--heated oxygen sensor(HO2S) 2 bank 1--high voltage ==causes --wiring short to positive --HO2S---ECM
2--oxygen sensor (O2S) 2 bank 1--high voltage ===causes wiring short to positive ---ECM
code p 0139 refers to 2 items
1--- heated oxygen sensor (HO2S) 2 bank 1--slow response ===causes --heating inoperative --wiring--ECM
2--oxygen sensor (o2S) 2 bank 1 slow response ===causes --wiring --- O2S

heated oxygen sensors9HO2S) are in the exhaust manifold before the cat converter
Oxygen sensors (O2S) are after the cat converter
it is indicated that the HO2S is faulty-
check the wiring and /or replace both sensors

Nov 16, 2017 | 2001 Nissan Maxima

2 Answers

Were are the O2 oxygen sensors location on a 2001 Cadillac DeVille


hi im wesall o2 sensors are located in the exaust system yours has one before the converter one after if it has duall exaust before the cat on drivers side will be upstream sensor bank 1 after cat right side will be bank 2 sensor 2
thanks wes
ps please rate me

Mar 28, 2009 | 2001 Cadillac DeVille

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