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Location for oxygen sensor 1 and 2

Help finding were the oxygen sensor bank 1and bank 2 are located around the motor

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  • Cars & Trucks Master
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The O2 sensors are mounted in the exhaust pipes. Bank one is the side with cylinder one, and bank two is with cylinder two.

Posted on Jul 13, 2013

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Posted on Jan 02, 2017

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bschilz
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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

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

  • 135 Answers

SOURCE: Can't find oxygen sensor bank 2 sensor 1 location

The O2 sensor on the 3.5L is located towards the rear of the engined mounted in the exhaust manifold.

Posted on Jul 07, 2009

wracefans24
  • 1985 Answers

SOURCE: problem locating the oxygen sensor for my 2000 Toyota Estima

drivers side ,sensor before converter

Posted on Jan 03, 2010

toneman2121
  • 775 Answers

SOURCE: 2001 Olds Alero oxygen sensor bank 1 P0135

p0135 indicates bank 1 sensor 1 which is before the cat.

Posted on May 22, 2010

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1 Answer

Where is the location of 02 sensor for bank 1 sensor 1 on a 2001 Pontiac Montana?


Bank 1 sensor 1 means the first oxygen sensor closest to the motor. The location is probably in the exhaust manifold, if not then follow the pipe from there and it's the first one you find. Hope this helps

Jul 19, 2014 | 2001 Pontiac Montana

1 Answer

PO 134 bank 1 location


Bank 1 is located towards the driver's side. Sensor 1 is located upstream just below the exhaust manifold.
EOBD II Error Code: P0134
Description:
Oxygen Sensor (O2S) 1, Bank 1/Heated Oxygen Sensor (HO2S) 1, Bank 1 - No Activity Detected
Possible Causes:
- Wiring.
- Signal wire between the Heated Oxygen sensor and ECM is disconnected.
- Heated Oxygen Sensor defective.
- ECM.

Jul 04, 2014 | 1999 Hyundai Sonata

1 Answer

Need to replace the Oxygen sensor at location bank 2 sensor 1 where is the location of this sensor.


find #1 cylinder that side is bank 1, bank 2 is opposite. sensor 1 is closest to manifold.

Jan 10, 2013 | 2003 Toyota Highlander

1 Answer

2002 Toyota Camry oxygen sensor Bank 1 Sensor 2 location


go to manifold follow it till you find the downstream sensor there you go

Jul 21, 2012 | Cars & Trucks

4 Answers

Where is bank1 and bank 2 located on a lincoln LS?


Bank #1 passenger side

Bank #2 driver side

Replace the front (2) converter inlet O2 Sensors,
when they get to 100,000 miles

Aug 04, 2011 | 2002 Lincoln LS

2 Answers

I have research around and found that the Bank 1 sensor 3 O2 sensor is post Cat. But when I got under there I dont see anything that could resemble a sensor. Where is it. Please help. Marc


try this
ALLDATA Editor's Note: Always verify #1 cylinder location prior to diagnosis and repair.

- Cylinder bank number one is the bank that contains number one cylinder.


See: Firing Order


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Cylinder #1 on left side.

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Cylinder #1 on right side.

- The first oxygen sensor in cylinder bank # 1 is numbered O2 Sensor 1/1.
- The second oxygen sensor in cylinder bank # 1 is numbered O2 Sensor 1/2.
- A third oxygen sensor in cylinder bank # 1 would be numbered O2 Sensor 1/3.
- The first oxygen sensor in cylinder bank # 2 is numbered O2 Sensor 2/1.
- The second oxygen sensor in cylinder bank # 2 is numbered O2 Sensor 1/1.



- If a V-6 or V-8 vehicle only uses one downstream Heated Oxygen Sensor (HO2S) it is numbered O2 Sensor 1/2, even if it uses two upstream HO2S.
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Jun 03, 2011 | 2001 Dodge Stratus

2 Answers

Location of the oxygen sensor bank 1


Bank 1 refers to the oxygen sensor in the exhaust pipe before the catalytic converter. See diagram here http://hdabob.com/wp-content/uploads/2009/11/Exhaust-300x201.jpg

Mar 26, 2011 | Chevrolet Impala Cars & Trucks

2 Answers

Bank 1 sensor 2 location on a 1996 chevy suburban


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Fig. Fig. 3: Oxygen sensor-4.3L engines


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Fig. Fig. 4: Oxygen sensor-5.0L and 5.7L engines





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Fig. Fig. 5: Oxygen sensor-7.4L engines




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.

Hope helps (remember to rate this).



Dec 12, 2010 | Chevrolet Suburban Cars & Trucks

2 Answers

Need to know location of Bank 1 Sensor 1 on engine


If I am not mistaken bank one should be your driver side. However your sensor one will be before the cat converter. So you just have to find the o2 sensor before the cat converter on the driver side. Good Luck.

Oct 12, 2009 | 2003 Acura 3.2TL

2 Answers

How many oxygen sensors in a 2001 chrysler sebring 3.0


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Fig. Heated Oxygen (HO2S) location (sensor 1)-2.4L engine

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Fig. Heated Oxygen (HO2S) location (sensor 2)-2.4L engine

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Fig. Heated Oxygen (HO2S) location (bank 1, sensor 2) (bank 2, sensor 2)-2.7L engine

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Fig. Heated Oxygen (HO2S) location (bank 2, sensor 1)-2.7L engine

I hope help you with this (rated this help). Good luck.

Sep 09, 2009 | 2001 Chrysler Sebring

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