Question about 2000 Nissan Maxima

2 Answers

Oxygen sensors i have a 2000 maxima v6, and need to know how many oxygen sensors is there on my car , i was told there 2 then i was told 3 , and the third parts store told me there was 4. i cannot afford a mechanic if u could tell me how many there is and where r the located, i have someone that will help me fix it. thanks

Posted by on



2 Answers

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 3 Answers

Ashleyy_ryan that year maxima can have 3 or 4 oxygen sensors 2 pre cat and 1 post cat or 2 pre cat and 2 post cat depending on the production date. the best way to find them -i found- is to start at the front of the engines exhaust manifold and follow it down you will see the exhaust go up to the rear of the engine follow it as well they are hard to see. the best way to see them is from under the car.--2000 maxima

Posted on Jan 11, 2009

  • Level 1:

    An expert who has achieved level 1.


    An expert that has over 10 points.


    An expert whose answer got voted for 2 times.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 19 Answers

Here is the location of the O2 sensor, Under hood, center, lower engine area, rear center of engine, mounted in exhaust manifold

and here is the location of the PVC valve, Under hood, center, upper engine area, mounted in intake manifold

So to your problem there is only one oxygen sensor according to your repair guide. If you need any other info on parts and location you can try Auto Zone .com

Posted on Jan 10, 2009


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Why is the fuel/air mixture too rich at high revolution on 2000 Maxima 3.0QX?

air fuel mixture s are controlled by the MAP/VAF sensors and the heated oxygen sensor and the normal oxygen sensor
to determine the exact sensor , run the fault codes

Feb 22, 2016 | 2000 Nissan Maxima

1 Answer

A few months back my daughter took her 2000 nissan maxima in and had it scan with a obd11 and she was told it was a o2 sensor, she did nothing ,so i took it in today and it reads po300 code.[misfire...

It shoudn't be. Your oxygen sensors detect the oxygen in the engine. A misfire can be a few things, such as spark plugs/coils, wires, distributor cap and rotor, cam sensor, crank sensor, ecm. I would start with a tune up. If it has been more then 75,000 miles since you changed the plugs and wires, it could be that. Has it been acting up, such as hesitations, stalling when you slow down or stop?

Feb 11, 2011 | 2000 Nissan Maxima

2 Answers

I have no idea where the oxygen sensor is on my 1990 ford areostar van. My van recently started stalling, mostly in gear, just idles very roughly. been told the oxygen sensor is usually the problem for...

If it's a v6 then you have 3 sensors 1 at each bank and 1 after the converter , 4 cyl. has 2 . It gets costly replacing things with out knowing what the problem realy is. You have it scanned.

Jan 19, 2011 | Ford Aerostar Cars & Trucks

1 Answer

After replacing an oxygen sensor, how can i reset

U can reset the light with a OBD 2 code reader (prefered method) or u can disconnect the battery NEGATIVE cable for 5 minutes, this erases everything including radio stations and time settings, so if u klnow anyone with a OBD 2 code reader do it that way.

Apr 15, 2010 | 2000 Nissan Maxima

1 Answer

My 2000 Maxima says check engine. We diagnosed it and they came up with P0420 and P0430. What can we do to removed this problem because it needs to pass smog. Some told us to replaced the catalyst...

It amy be very well be a bad cat. in both banks it is common in those cars, or your ecm may need to be reprogrammed as well as oxygen sensor replacement.

Oct 06, 2009 | 2000 Nissan Maxima

1 Answer

2oo0 chevy blazer cel and code p0171 and p0174

Depending on the engine it will have between 4 and 2.

If you had a straight 4 or 6 engine then there would be only 2, one on the exhaust manifold or exhaust pipe and then one just after the catalytic converter.

If you have a "V" engine (V8, V6) then you have an oxygen sensor on each exhaust manifold and will have a catalytic converter for each bank of the V. There will also be an oxygen sensor downstream of each converter as well. In this case there would be 4 oxygen sensors.

Oct 05, 2009 | 2000 Chevrolet Silverado 1500

2 Answers

Do you know what a H02S12 means cause I have 2 codes coming up with service engine light ?

Heated oxygen sensor bank 1 sensor 2, what was the code numbers that came up?

Jul 17, 2009 | 2000 Nissan Maxima

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

Not finding what you are looking for?
2000 Nissan Maxima Logo

447 people viewed this question

Ask a Question

Usually answered in minutes!

Top Nissan Experts


Level 3 Expert

79865 Answers

Phil Lovisek
Phil Lovisek

Level 3 Expert

726 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22326 Answers

Are you a Nissan Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides