Question about 2003 Cadillac CTS

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Oxygen sencor location

Where is the oxygen sencor location on the vichle?

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Its gunna be located somewhere on the exhaust system since its a v6 or v8 it should have one per bank unless cadillac only uses one

Posted on Mar 08, 2009

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Look inder the car at the exhaust manifold there should be one right before it goes inder the car and another just past the catalytic converter, if its not there just trace your exhaust system and they will be plugged right into the pipe

Posted on Mar 08, 2009

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1988 Dodge Dynasty. Auto transmission. Gear indicator pointer on dash is off by one position. It reads 'R' when it's actually in park. Or 'N' when its actually in D. How do I correct that?


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Hi again Sharon:
On 1991 Honda Accord 2.2L FI 4cyl the Oxygen Sensor is located under hood, center, front engine area, mounted in exhaust manifold (Except EX model).


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A special socket is used to remove the oxygen sensor. Note the slot cut into the side of the socket.

Hope this helps; also keep in mind that your feedback is important and I'll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using Fixya, and have a nice day.

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Have a oxygen sencor and dont know were to put it in at thanks....


WELL WHICH OXYGEN YOU REPLACING THE UPSTREAM OXYGEN SENSOR MOUNTED IN EXHAUST MANIFOLD AND THE DOWN STREAM OXYGEN SENSOR LOCATED IN THE EXHAUST SYSTEM AFTER THE CATALYTIC CONVERTER .YOU NEED A OXYGEN SENSOR SOCKET TO REMOVE IT.TO REMOVE OXYGEN SENSOR CRANK VECHICLE TO GET OXYGEN SENSOR HOT BECAUSE HARD TO REMOVE WHEN COLD.BECAREFUL DONT GET BURN ON EXHAUST MANIFOLD WHEN REMOVING OXYGEN SENSOR.AND WHEN INSTALLING NEW OXYGEN SENSOR USE ANTI SEIZE COMPOUND ON SENSOR THREADS.BUT MOST OF THE TIME NEW SENSOR WILL HAVE ANTI SEIZE COMPOUND ON IT.

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2 Answers

Where is the oxygen sensor located in a 1991 honda accord


1991 Honda Accord 2.2L FI 4cyl
The Oxygen Sensor is located under hood, driver side, rear engine area, below exhaust manifold flange, mounted in exhaust pipe.
Application: EX model

Good luck.

Mar 16, 2010 | 1991 Honda Accord

1 Answer

I was told today that i have a code 0420 oxy sencor. true false. The issue is I am eating gas.


Sounds true. The oxygen sensor regulates the fuel air (oxygen) mix for optimum performance with the least amount of fuel. If the oxy sensor malfunctions you'll get the incorrect fuel/air mix and waste fuel. Some vehicles see a 10% increase in fuel use with a bad O2 sensor.

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I have to replace the downstream oxygen sensor. A


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Odds are your manual won't tell you.

Get a Haynes or Chilton manual (free at most libraries) for your make , model and year.

The location, plus changeout info will be in it.

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Camry pro ducing to much oxygen and fuel


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Possible o2 sensor 2002 GMC Onvoy


O2 sensors indicate unburned oxygen in the exhaust sysytem. Bad O2 sensors causes fuel mixture to run rich. It causes fuel consumption and your emmissions test will not pass. Check for vacuum leaks check the manifold.check for a misfiring cylinder, a burned exhaust valve that is leaking compression. replace the O2 sensor or sensors. Some cars have 2 . One for the intake another for the out take. If it reads a code for the Map sensor along with the O2. It is better ifyou replace both sensors. But I think that the problem lies in the oxygen sensor or sensors. Pleae vote my answer if this helps.

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