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Are the downstream oxygen sensors 02 on a 2006 mitshubishi eclipse the same? Rigth and left? Passenger side or driver side?

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  • 62 Answers

If it is a 3.0 then there should be one downstream and 2 upstream I think. The downstream sensors are different than the upstream, but the two upstream ones are the same part #

Posted on Dec 27, 2016

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Posted on Jan 02, 2017

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  • 132 Answers

SOURCE: I have a diagnostic code

This is a oxygen sensor code but getting bad reading from catilytic convertor. Have the cat checked

Posted on Jan 31, 2009

Brian032472
  • 150 Answers

SOURCE: will a bad oxygen sensor cause my car not to start?

An o2 sensor won't cause a no start issue. I'm praying your anti-freeze mixture was correct that day though.

Posted on Feb 01, 2009

djicenova
  • 319 Answers

SOURCE: were is the front oxygen sensor located on a 1996 lincoln tow car

passenger side of manifold, before the catalytic converter. this system may have more than one on the frontside of the cat.

Posted on Feb 27, 2009

emissionwiz
  • 76630 Answers

SOURCE: Replacing bank 1 sensor 2 and bank 2 sensor 1 oxygen sensors

BANK ONE IS THE REAR BANK OF CYLINDERS AND TWO THE FRONT BANK

Posted on Jun 24, 2009

  • 7 Answers

SOURCE: how do I change the downstream oxygen sensor on a

If this car has heated seats you need to pull out the seat to replace this sensor otherwise you can fish the wire out from beneath the carpet inside the car.

Posted on Jun 27, 2009

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1 Answer

Location rear oxygen sensor, bank 2, volvo xc90 t6, 2.9 biturbo,2003


Passenger side exhaust is bank 1 driver side is bank 2. Second sensor downstream of the cat is sensor #2

Apr 07, 2015 | 2003 Volvo XC90

1 Answer

What is an 02 sensor upstream 98 astro van


02 sensor is your oxygen sensor, 98 chevy astro carries 3 oxygen sensor. i belived your bad sensor is on the passenger side by the exhaust manifold but if not try the drivers side all the oxygen sensor for this van are the same. you need to go under the van to replace it, if is to hard to get it out turn your van for five minutes then turn it off and try again, be carefull not to burn your self. the one close to the catalytic converter is the downstream oxygen sensor ok, good luck!!!!!!

Jun 28, 2014 | 1998 Chevrolet Astro Van

1 Answer

How do you know what O2 sensor is out the code was HO2S21 what does the 2 and the 1 at the end represent


Your better of Googling your questions

Everything you need to know about vehicles
& OBD2 Codes, is all over the internet

Need to study OBD 2 Systems (1996 thru 2013)


Oxygen Sensors

S11 is the passenger side-- on the exhaust
before or in the converter
S12 is the driver side exhaust

Both of those are the front or upstream sensors
that control the fuel trim or injector pulse

If you had a S21 or S22 they would be the sensors in the
converter at the outlet

They are called downstream or Monitors

Those don't do a thing until the converter looses
efficiency,then they watch the switching ratio between
the front & rear, to tell you the converter has failed


HO2 --is Heated Oxygen Sensor

11-front sensor-right side (on a Ford)
12-front sensor-left side
21-rear sensor-right side
22-rear sensor-left side

Not all vehicles are numbered the same as a ford

Mar 30, 2014 | 1997 Mercury Grand Marquis

1 Answer

What is the best way to remove O2 sensor bank 1 sensor 2?


Here is the low-down on oxygen sensors, and their location designations explained:

Oxygen sensors are screwed into the exhaust system at various points. Some people say that there are 4 oxygen sensors, but technically, that is not correct. Only the front 2 are considered oxygen sensors.

These oxygen sensors are screwed into the exhaust pipe or directly into the exhaust manifold, one on each bank. Because they are in front of the catalytic converter, this is often referred to as 'upstream'.

The other 2 are actually called catalyst monitors. They are oxygen sensors, but they serve a different purpose. They monitor the activities of the catalytic converters, thus the name, catalyst monitors. They are screwed into the exhaust one on each bank, after, or downstream, of the catalytic converters.

On a 4 cyl engine, there are only a total of two such sensors, the one in front of the catalytic converter is the O2 sensor, the one behind the cat is the catalyst monitor.

The location names for them are as follows:
  • On a 4 cyl, the front / upstream is called "bank 1 sensor 1" and the rear / downstream sensor is called "bank 1, sensor 2."

  • On a V6 or V8 engine:

    • the passenger side bank on a forward facing engine, or the bank closest to the firewall on a transverse mounted engine, is bank number 1, so the forward / upstream sensor on that bank would be "bank 1, sensor 1."

    • The driver's side bank (forward facing mount engine), or front bank (transverse engine) would be bank number 2, thus the forward / upstream sensor on that bank would be "bank 2, sensor 1," and the rearmost / downstream sensor on that bank would be "bank 2, sensor 2."

Jul 28, 2012 | 2004 Mitsubishi Endeavor

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

3 Answers

Whats the difference between up and downstream sensor on a chevy s10 1997, what exact sensors do i need for bank 1 and bank 2 sensor1


Well upstream from the Catalatic Converter means towards the engine and that would be the location for Sensor #1 on both sides of the engine. And Downstream would be away from the engine past the Catalatic Converter For Sensor #2 on both sides of the engine. Bank 1 or Bank 2 would indicate which side of the engine the trouble is on. ( Bank #1 is the side of the engine that contains #1 Cylinder. Please remember if you are going to change one 02 Sensor then you should change all of them and be sure to clear all codes after all repairs are finished. that will turn the check engine light off. Good Luck and have a good XMASS.

Dec 18, 2010 | 2002 Chevrolet S-10

2 Answers

Where is bank 1 sensor 1 oxygen sensor 1999 ls400


1.Bank 1 is on the driver side.
2.Bank 2 is on the passenger side.
3.Sensor 1 is the upper sensor or upstream sensor in the manifold.
4.Sensor 2 is the downstream sensor.

Nov 06, 2009 | 2001 Lexus RX 300

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

Leakage on drivers side floor board


Cold, too...
The A/C drain tube is clogged.
Raise passenger side with jack & support. or use ramps.
There is a tube under the firewall. Use a straighted-out metal coat hanger (corkscrew end) to clean out.

Have a dry towel handy ... your face will get wet.

Oct 05, 2009 | 2002 Mitsubishi Eclipse Spyder

2 Answers

Replacing bank 1 sensor 2 and bank 2 sensor 1 oxygen sensors


BANK ONE IS THE REAR BANK OF CYLINDERS AND TWO THE FRONT BANK

Jun 24, 2009 | 2002 Ford Escape

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