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Replace right up flow oxygen sensor bank 1 sensor 1, right side. That is one on right when looking at engine from behind car.

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Posted on Jan 02, 2017

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SOURCE: how to replace the bank

A bank two sensor means it is on the side of the engine that does not contain the number 1 cylinder. Was there a sensor number to go along with that? Usually that code pops up as "Bank X, Sensor X" to tell you which side and sensor it is. From what I have read, Avalons have 3 O2 sensors. 2 Pre-Cat and 1 Post.

Once you figure that out, replacing one is as simple as getting an open end wrench, unscrewing and disconnecting the old O2 sensor, and reverse the procedure to install the new one.

Posted on Jul 27, 2008

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emissionwiz
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SOURCE: Service Engine soon light Code P0133

In most cases this means the O2 sensor is defective.

Posted on Dec 11, 2008

DAD5bbbbg
  • 111 Answers

SOURCE: directions on replacing the oxygen sensor

Start at the exsoust manifolds.follow it back and you will find the o/2 sensors. I would spray them with WD 40 before you try to take them out. most of them can be very tight and hard to get to. make sure that you unpulg them and check the wires to make sure they are on.

Posted on Mar 03, 2009

USfalcon
  • 175 Answers

SOURCE: O2 Sensor problem

this pic with be the fix ya
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Posted on Apr 10, 2009

ghassun
  • 499 Answers

SOURCE: check engine light is on...bank 1 sensor1 oxygen sensor

if u have one oxygen sensor then u need to take a deep look at the bottom of ur car it will be somewhere at the Exhaust pipe if u have a catalytic converter then u will have two oxygen sensors one before the catalytic converter & the other will be after the catalytic converter. Note: the catalytic converter is located at after a little bit of beginning in Exhaust pipe.

Posted on Jun 06, 2009

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P0057 - Where is Sensor 2 Bank 2 Located?


On V engines one of the cylinder heads is located further forward than the other. That is the side that has cylinder #1 on it. That is bank 1. The other side is bank 2. There are 2 oxygen sensors-one in front of the cat convertor and one behind it. Sensor 2 is behind the convertor. It looks kind of like a spark plug with wires coming out the top

Dec 31, 2013 | Hyundai Sonata Cars & Trucks

1 Answer

How many o2 sensors are on a 1999 Silverado 5.3


The 1999 5.3 V8 engine had 4 oxygen sensors. There are two catalytic converters on this engine, one on the driver side of the engine, and one on the passenger side of the engine. This is important to know, as the number of oxygen sensors is directly related to the number of catalytic converters on the vehicle. Driver side is referred to as Bank 1, passenger side is referred to as Bank 2. This is very important to know when looking up replacement oxygen sensors. There is one oxygen sensor in front of, or before the catalytic converter, usually referred to as a pre-catalyst O2 sensor. There is also one behind, or after the catalytic converter, usually referred to as a post-catalyst oxygen sensor. So, you have two oxygen sensors on Bank 1, and two oxygen sensors on Bank 2, for a grand total of 4 oxygen sensors.

Oct 03, 2013 | 1999 BMW 318 ti

1 Answer

I just replaced both o2 sensors pre-cat converter and can't clear the service engine light on an 01 yukon. I tried pulling the fuse, disconnect battery with no luck. In research I noticed that the dealer...


I think you need Bosch for that vehicle. here is a rundown how it helps


Every automobile manufactured after the 1980s is equipped with an oxygen sensor. This component measures the ratio of air and gasoline in the engine and feeds the data to the vehicle's computer. With an oxygen sensor, your engine runs more efficiently and produces as few emissions as possible. If your car's running with a busted oxygen sensor, you better get a new one before your engine's efficiency takes a nosedive and your gas bills skyrocket. We know that looking for the right replacement oxygen sensor can be very tricky, that's why we've come up with a guide for you to keep in mind when shopping for a new oxygen sensor.
Which oxygen sensor should you buy?
There are a lot of questions about which oxygen sensor to replace. In fact, failures are common among cars especially when the wrong sensor is installed. With today's automobiles equipped with at least two, or even three or four oxygen sensors, it can be very confusing as to which one is not working correctly. There are probably a lot of sensor codes to choose from and here's a tip to help you sense the right oxygen sensor.
Oxygen sensors are always numbered this way:
Bank 1 Sensor 1
Bank 2 Sensor 1
Bank 1 Sensor 2
Bank 2 Sensor 2
Other manufacturers code their oxygen sensors this way, which is why it can sometimes be very confusing. However, they all mean the same:
Sensor 1/1 or O2s 1/1
Sensor 2/1 or O2s 2/1
Sensor 1/2 or O2s 1/2
Sensor 2/2 or O2s 2/2
Now here's a detailed list to know which is which:
  • Bank 1 is located at the side of the engine where cylinder #1 is found as well.
  • Bank 2 is on the opposite side of Bank 1.
  • On a 4-cylinder engine, there is only one bank that's called Bank 1.
  • Sensor 1 is the upstream sensor located before the catalytic converter.
  • Sensor 2 is the downstream sensor located after the catalytic converter.
  • Sensor 3 is the only downstream sensor in situations where there are two sensors before the catalytic converter and only one after it. On other cars, this is read as Bank 1 Sensor 3.
With these detailed tips on how to sense the right oxygen sensor, you'd be sure to buy the right replacement part at your store. Be sure to purchase one from a trusted brand to avoid any complications you might experience with ones that are bought from local junkyards BEST OF LUCK

Aug 26, 2013 | Dodge Grand Caravan Cars & Trucks

2 Answers

Where is the bank 1 sensor 1 o2 sensor located in a 2006 hyundai sontata gls v6?


The bank has to do with which side of the engine. The 'Sensor 1' indicates that it is upstream of the catalytic converter.

Heated Oxygen Sensor Removal & Installation Heated Oxygen Sensor (Front) (2.4L) hyundai-04-24-5822.gif

Heated Oxygen Sensor (Rear) (2.4L) hyundai-04-24-5823.gif

Heated Oxygen Sensor (Bank 1/Sensor 1) (3.3L) kia-04-00-5213.gif

Heated Oxygen Sensor (Bank 1/Sensor 2) (3.3L) kia-04-00-5214.gif

Heated Oxygen Sensor (Bank 2/Sensor 1) (3.3L) kia-04-00-5215.gif

Heated Oxygen Sensor (Bank 2/Sensor 2) (3.3L) hyundai-04-33-5855.gif

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Jan 13, 2011 | 2006 Hyundai Sonata

1 Answer

Where is the bank 1 sensor 2 o2 sensor for a 96 chevy s10 v-6?


Oxygen sensors are numbered by which bank of cylinders they serve. Bank 1 is the left or drivers side bank of cylinders on the 4.3L which has the odd numbered cylinders 1,3, and 5. Bank 2 is the right or passenger side bank of cylinders numbered 2, 4, and 6. The Bank 1 Sensor 1 would be the sensor for the left hand side of the engine AHEAD of the converter. Bank 1 Sensor 2 is the sensor for the left hand side bank of cylinders BEHIND the converter.

Jun 02, 2010 | 2002 Chevrolet S-10

1 Answer

What does po135, p1131, and p0305 mean on a ford f250 with a 4.6L 2007


PO135 = Upstream Heated Oxygen Sensor Heater (HTR 11) circuit (Bank #1)

P1131 = Lack of upstream Heated Oxygen Sensor (HO2S 11) switch, sensor indicates lean (Bank #1)

P0305 = Cylinder #5 Misfire detected

It looks like you have two separate issues happening. Bank 1 would be the left side of the engine if you were standing in front of the truck looking at the engine. The "upstream" oxygen sensor will be on the exhaust pipe coming from the bank one side of the truck IN FRONT of the catalytic converter. From the codes, it appears that the upstream sensor has gone bad, but the oxygen sensor behind the catalytic converter, or "down stream" is fine.

The misfire on cylinder 5 on the right side of the engine, 2nd one from the front, could be something as simple as a fouled spark plug or a coil malfunction.

To identify if it is a bad coil, swap the #5 cylinder coil with another coil, and see if the misfire follows the relocated coil.

Dec 22, 2009 | 2007 Ford F-250 Super Duty Lariat

1 Answer

On my 97 Olds Aurora, I'm having trouble passing emissions. An oxygen sensor is malfunctioning, I have had my codes read and they say it's the bank 1 sensor 1. But I just replaced the very first oxygen...


The bank 1 sensor should be the one before the CAT on the side of the engine that includes cylinder #1. If you're not sure which bank that is, look across the heads from the side of the engine (front of the car) The bank with #1 on it will have the head a little (1"-2") more towards the front of the engine. The bank that has the head set back a bit will be #2. When there are sensors after the CAT, they're not oxygen sensors, they're CAT efficiency sensors.

Nov 25, 2009 | 1997 Oldsmobile Aurora

3 Answers

Where is the bank 2 sensor 1 located.


Oxygen sensors are always numbered like this:

Bank 1 sensor 1
Bank 2 sensor 1
Bank 1 sensor 2
Bank 2 sensor 2

some manufacturers use a kind of shorthand that reads different, but means the same thing:
Sensor 1/1 or O2s 1/1
Sensor 2/1 or O2s 2/1
Sensor 1/2 or O2s 1/2
Sensor 2/2 or O2s 2/2

Bank 1 is always the side of the engine where cylinder number 1 is located and, of coarse, Bank 2 is the opposite side.
On a 4 cylinder engine, there is only 1 bank and it is always referred to as Bank 1.

Sensor 1 is always the upstream sensor (The one located BEFORE the catalytic converter)
Sensor 2 is always the downstream sensor (the one that is located AFTER the catalytic converter.

Most GM engines have #1 cylinder located on the left bank, (or Driver's Side) of the engine,

So, the answer to your question would be that you are looking for the sensor located before the catalytic converter on the right (or Passenger Side) of the truck.

Oct 17, 2009 | 1996 Chevrolet K1500

1 Answer

How do I fix a bank2, 02 sensor?


just a quick note: bank 2 is LEFT side (drivers) on a rear wheel drive vehicle ,on front wheel drive vehicles it would be the front side when looking down from the front of the vehicle ,Sensor 2 is after the cat converter! if you replace that sensor, clear the codes or have someone clear them for you and you should be all set.
the 2 of bank 2 is the 2nd oxygen sensor that is located after the catalytic converter.usually closer to the tailend of the header pipe.
The sensor I believe you are looking for is in the exhaust pipe or exhaust manifold, usually the right bank which is on the right side of the car (driver is left), or close to the firewall if engine is mounted sideways. Some cars are equipped with a sensor behind the catalytic converter that tells the computer the HEALTH of the converter only. It has nothing to do with running of the engine per say.
Bank 1 is which ever side has cylinder 1. It could be left or right. Bank 2 would be the other side. Bank 1 sensor 1 would be before the catalytic converter. Bank 1 sensor 2 would be after the converter. The same applies with bank 2.

Oct 10, 2009 | 2001 Toyota RAV4

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