Question about 2002 Chevrolet Impala

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2002 chevy impala o2 location?

I cant find the location of my o2 sensor on my 2002 chevy impala ?

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  • mike loshbough
    mike loshbough May 11, 2010

    which one?

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    mgtruss77 Oct 04, 2013

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  • Anonymous Mar 23, 2014

    location in transmision

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It is locared on the driver side on top of the transmision

Posted on Feb 27, 2009

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I have 2002 chevy impala changed the 02 sensor and it is still reading the same 02 sensor.


because its not the sensor.
its the plug for the sensor .the wires.or it
is the cataletic converter/exhaust system
i just replaced my exhaust on my 07 chevy malibu same o2 sensor issue p0420 or something like that ?!
replace the converter and youll be fine i still have my old sensors in there that gave me the code :)
there not saying there bad but that the cat is bad.

Mar 18, 2015 | 2002 Chevrolet Impala

1 Answer

I have a 2002 chevy impala I changed the 02 sensor and my check engine light is still on and reading the same 02 sensor


You should have a primary and secondary O2 sensor, upstream and downstream. Pre-Catalytic converter and Post-Catalytic converter.
Which one did you replace?

Mar 18, 2015 | 2002 Chevrolet Impala

1 Answer

Where are the 02 chevy impala 3.8L o2 sensor locations, I only see three. the top bank one sensor 1 is stripped out, how do i get that one out?


you can apply pressure to the sensor while undoing it to force it out or you will have to cut out the thread area and get an O2 sensor bung hole replacement at an auto supply store and weld into place and install a new O2 sensor. bank 1 sensor 1 is located in the front pipe off the manifold that has cylinder #1 on and bank 2 sensor 1 is on the side that cylinder #2 is on like sensor 1. sensor 3 is the one just before the cat.

Sep 17, 2014 | 2002 Chevrolet Impala

1 Answer

Where is bank 1 o2 senser located on 2002 chevy impala


That is the downstream sensor.
This picture is the 3.4 engine



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Jul 09, 2014 | 2002 Chevrolet Impala

1 Answer

Impala o2 sensor


1. Reduced fuel economy
2. Increased exhaust emissions
3. Poor engine performance
4. Engine check light appears
5. Engine stalls during idling
6. A rotten egg odour emitting from the exhaust
7. Your engine surges or hesitates
8. Rich mixture

Jun 03, 2013 | Cars & Trucks

1 Answer

Where is the location of the o2 sensor in a 2002 chevy impala 3.8l engine?


if you look on the back side of the engine closest to the firewall there will be one in the exhaust manifold. That one will be the bank 1 sensor 1 O2 sensor.

If you look under the car there will be one right after the catalytic converter. That will be the bank 1 sensor 2 O2 sensor

Jul 06, 2011 | 2002 Chevrolet Impala

2 Answers

Where is the O2 sensor Bank 1 on a 2005 chevy impala


BANK 1 UP STREAM OXYGEN SENSOR LOCATION IS LOCATED ON THE REAR EXHAUST MANIFOLD.

May 18, 2011 | 2005 Chevrolet Impala

1 Answer

I have a 2002 chevy impala, I bought the car in december 2008 since i bought it Ive had to change the same o2 sensor about 5 times, the last time i had it changed the engine light came back on 4 days later...


Couple of notes - poor grade of fuel or additives can be coating O2 sensors. Next, when changing sensors are you disconnecting battery? If not a power surge can damage sensor and lastly check wiring harness and make sure wires are all clean and not scared along the way - could be shorting out.

Jan 30, 2011 | 2002 Chevrolet Impala

2 Answers

Where is the oxygen o2 sensor located on 2004 impala bank 1


There are 2 oxygen sensors on the 2004 Impala, located under the car near the CAT converter.

Jack up the passenger side or onto ramps to make easier acess.

Jan 04, 2011 | 2005 Chevrolet Impala

1 Answer

Replacing upstream O2 sensors on 2002 chevy silverado 1500


follow the pipes from the cat forward, you shld be able to find them. from the cat down or back, would be your rear sensors.

Aug 26, 2009 | 2003 Chevrolet Silverado 1500

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