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TRYING TO LOCATE THE O2 SENSORS - Camry Toyota Cars & Trucks

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02 sensors are generally located in a few places, one will be directly in the exhuast manifold itself, one will be before the catalytic converter, and one after the catalytic converter. All are directly bolted into the exhaust.

Posted on Aug 07, 2008

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Where is the 02 Oxygen Sensor before the cadalic converter on a 2006 Hyundai Santa Fe


Usually these are located on the exhaust manifold or just below the exhaust manifold and you should be able to see it in the engine bay. On V6 engines there will be one sensor on each of the 2 exhaust banks.
You will probably need to remove the engine cover to see the sensors on your exhaust.

If someone told you to replace these because you got a particular fault code I would be wary. A decent scan tool and basic diagnostics can show if the 02 sensor is working or not. Some faults often blamed on an 02 sensor are not due to faulty sensors.

Jan 09, 2016 | 2006 Hyundai Santa Fe

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How to Replace the O2 Sensor in Mercury villager?


O2 sensor needs to be replaced when you get low gas mileage in car.
The procedure to replace is as follows: ----
1) There is primary and secondary O2 sensor connector.
2) Do the replacement of the O2 sensor only when the engine is completely cool.
3)You will see primary O2 sensor on the exhaust manifold.The secondary O2 sensor is located after the catalytic converter.
4)Put the car on jack stands on the rack, this will give you proper sensor location in the car.
5)Remove the O2 sensor with a socket wrench and O2 removal tool extension. Turn the O2 sensor counterclockwise to remove.
6) Most of the times the O2 sensor comes out very easily but if its bit hard to remove it then you can use "FREEZE spray" to make it gets loose.
7)The spray will make it come out easily.
8)When the O2 sensor is getting removed, some of the wiring's will also come out.
9)Before removing the O2 sensor, take the note of the wiring's and the position of wiring so while inserting new O2 sensor you don't get confused.
10) Now after you remove the old faulty O2 sensor out. Carefully insert new O2 sensor in same position.
11) And reverse/refit all the wires / parts which you removed while replacing the old O2 sensor.
This will help. Thanks.

on Mar 22, 2010 | Mercury Villager Cars & Trucks

1 Answer

H2o bank 2 sensor 1 location


Bank and sensor location. Bank 1 refers to the back of cylinders that contain cylinder #1. Bank two refers to the other bank of cylinders that do not contain cylinder #1. Sensor 1 refers to the upstream O2 sensor or the O2 sensor before the catalytic convertor. Sensor 2 refers to the downstream O2 sensor or the sensor located after the Catalytic convertor. I hope that helps, let me know if you have any other questions, good luck.

Mar 25, 2014 | 2000 Cadillac DeVille

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

1 Answer

2006 hundai elantra P2270 code. If this is an O2 sensor, which one?


Possible O2 sensors:

P2270 O2 Sensor Signal Stuck Lean Bank 1 Sensor 2
P2271 O2 Sensor Signal Stuck Rich Bank 1 Sensor 2
P2272 O2 Sensor Signal Stuck Lean Bank 2 Sensor 2
P2273 O2 Sensor Signal Stuck Rich Bank 2 Sensor 2
P2274 O2 Sensor Signal Stuck Lean Bank 1 Sensor 3
P2275 O2 Sensor Signal Stuck Rich Bank 1 Sensor 3
P2276 O2 Sensor Signal Stuck Lean Bank 2 Sensor 3
P2277 O2 Sensor Signal Stuck Rich Bank 2 Sensor 3
P2278 O2 Sensor Signals Swapped Bank 1 Sensor 3 / Bank 2 Sensor 3
---
This is Bank 1 (closer to the dash panel) Sensor 2 (located after the catalytic converter).

---
Note: A malfunctioning front oxygen sensor may cause fuel trim codes to set.
  1. Several Diagnostic Trouble Codes use specific terminology to refer to sensor location. The illustration and key below explain the following terms:
  2. Engine BANK Bank 1 is closer to the dash panel, (also referred to as RH or right hand). Bank 2 is closer to the radiator, (also referred to as LH or left hand).
  3. UP Refers to Sensor 1 or "front sensor". It is located closer to the exhaust manifold and before the catalytic converter.
  4. DOWN Refers to Sensor 2 or "rear sensor." It is located after the catalytic converter.
  5. The following examples show how to interpret oxygen sensor terminology:
  6. B1/S1 = Bank 1/Sensor 1 = Dash panel side, BEFORE the catalyst or "upstream"
  7. B2/S2 = Bank 2/Sensor 2 = Radiator side, AFTER the catalyst or "downstream"

Aug 06, 2010 | Hyundai Elantra Cars & Trucks

1 Answer

WHERE IS MY OXYGEN SENSOR LOCATED


On almost every car, there is an O2 sensor located in the front, on the exhaust pipe, or manifold, and there is an O2 sensor located after the Catalytic converter. The front O2 sensor is the most important because it monitors the air/fuel ratio. The rear O2 sensor checks your Cat converter for proper operation and filtering.

Jul 10, 2010 | 2005 Pontiac Montana SV6

1 Answer

Where are the O2 sensors located? I hace a P0131


the o2 sensors are located on the exhaust pipe running from the motor to the muffler.the wires are made onto the sensor itself.

Jan 13, 2010 | 2005 Subaru Outback

1 Answer

Location of sensors


IAT SENSOR IS MOUNTED INSIDE INTAKE AIR HOSE TO THE AIR CLEANER ASSEMBLY. THE MASS AIR FLOW SENSOR IS ALSO MOUNTED TO THE INTAKE AIR HOSE OF THE AIR CLEANER ASSEMBLY. O2 SENSORS LOCATION.YOU HAVE 2 # O2 SENSORS.YOU HAVE ONE THE EXHAUST MANIFOLD.THE OTHER SENSOR LOCATED DOWN AT THE CATALYTIC CONVERTER.

Aug 19, 2009 | Hyundai Accent Cars & Trucks

2 Answers

O2 sensor?


The O2 sensor is located in the exhaust pipe prior to the catalytic converter. You'll have to get under the vehicle to see it or replace it.

Feb 23, 2009 | 1992 Pontiac Grand Prix

1 Answer

2005 Subaru Legacy: Where are the O2 sensors located (both)


the o2 sensors are locted in the exhaust system. upstream is before cat converter, downstream is after cat converter.

Nov 22, 2008 | 2005 Subaru Legacy

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