Question about 2001 Nissan Maxima

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Location of a o2 sensor 2001 nissan maxima

2001 nissan maxima, which o2 sensor is bank 1 sensor 2 ?

Posted by jjwoody55 on

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  • Anonymous Feb 18, 2009

    Service Engine soon light is on. When checked, I got a P0420 code which means the 02 sensor has malfunctioned. I dont know if it is Bank 1 sensor 1 or bank 1 sensor 2?

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    replace new one light but light on

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    lcation of bank 1 sensor 1 in a 2003 nissan maxima

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    which is in need of passing the smog check but doesn't due to O2 sensor 1 Bank 1, which one is it? and or what is its location in the car?

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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 .,26200242/shopping/specsSelect.htm

Posted on Jan 04, 2009


Jay Leduc

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I need to rev the rpms to srat it when cold but then the car runs fine when its been running for a while but after it sits for about 4 houres or more i need rev the rpms again to get it going

Posted on Nov 22, 2013

  • Jay Leduc
    Jay Leduc Nov 22, 2013

    i need to rev the rpms to srat it when cold but then the car runs fine when its been running for a while but after it sits for about 4 houres or more i need rev the rpms again to get it going



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I have 01 nissan maxima and it has p132 code and cutoff but will crank back what is the problem

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2001 nissan maxima engine misfire

The Fuel Pump, I assume failed & was another issue

The Fuel filter is changed every 3 years, as preventative

The Codes for the most part are O2 Sensors, that are over six
or seven years old & over 100,000 miles & should be replaced
as preventative maint or if they fail ,sooner

You don't throw out any what if senerios, or replace any parts
in an effort to resolve anything

You component test & replace only failed parts, related to the codes
& system that has a fault & drivability symptom

You should know if the spark plugs are over 3 years old

Clean the MAF Sensor & check for vacuum leaks on the entire car

Aug 01, 2012 | 2001 Nissan Maxima

2 Answers

Hi, I have, 2001 Nissan Maxima. Get check engine lite. Car now has 60k miles. Local mechanic had already replaced two O2 sensors 9 months ago. I don't know what the codes were at that time. Check Engine...

renew the O2 sensors to start with and just hope that its a bad sensor on this bank they can break down prematurely .Luck of the draw their when buying new parts iam afraid your not the only one to buy new parts and have them go early .

Jan 18, 2011 | 2000 Nissan Maxima

1 Answer

Where is o2 sensor designated bank 1 sensor 1 located on 1999 nissan maxima and how do change it also what is the replacement part number

Bank 1 is the side Cyclinder 1 in on, sensor 1 is befor cat converter. I think 7/8 box wrench, as in difficulty that depends on what in in the way.

Jan 02, 2011 | 1999 Nissan Maxima

2 Answers


It means that your engine is running lean - not getting enough fuel for the amount of air that the engine is receiving. Because your maxima is equipped with a V-6 engine, whatever the problem, it is affecting only bank #1. Bank #1 is always the side of the engine where cylinder #1 is located, or in your case, the left side of the engine as it is viewed while facing the crankshaft end of the engine.
(on a 4 cylinder engine, there is only one bank and it is always referred to as Bank #1)
There are several things that can cause a lean condition including vacuum leaks, a malfunctioning Evaporative Emissions system, a misfiring cylinder (due to bad plugs, bad injectors, or an intake or head gasket leak.), a malfunctioning Mass Airflow sensor (MAF) or Manifold Absolute Pressure sensor (MAP) or even a bad Oxygen sensor (O2s) (Nissan sometimes calls an O2s an "Air-Fuel Ratio Sensor") It is even possible for a leaking vacuum brake booster to cause a lean code.
If there are any other malfunction codes present, it may help to pinpiont the cause of the lean code. (Like a P0301 "cylinder#1 misfire detected", in which case, you would address the misfire code first.)
Certain problems, like a leaking brake booster or a bad MAF will usually set lean codes for BOTH banks.
If the P0171 is the ONLY code present, the most likely cause is a bad O2s, but I recommend some diagnostic testing to prove it before spending the mega-bucks that Nissan gets for their O2 sensors.

Oct 10, 2009 | 2000 Nissan Maxima

1 Answer

Im getting a code 51 from the on borad computer on

Do you mean P0051??

If you do, then it's an issue with one of your O2 Sensors.

You may have a short in the heater circuit in the sensor
The O2 sensor heater has failed
The wires connecting the sensor are broken or frayed

Most likely you will need to replace the sensor.
The sensor is Bank 2 Sensor 1
Bank 2 means it is located opposite of where cylinder 1 is (not sure where cylinder 1 is on your car) and Sensor 1 will mean it's the sensor located before the catalytic converter

Sep 25, 2009 | 1994 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

1 Answer

O2 sensor and EVAP issues

P0446 is Aux Emission Control
P0132 Fuel Air Metering

The Evap Canister is located in the fender well, if I am not mistaken and the B1S2 is the O2 sensor is the second O2 sensor on the left side of the engine if your looking at it from the front of the motor.

Aug 21, 2008 | 1997 Nissan Maxima

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