Question about 2002 Mitsubishi Galant

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How do I replace the o2 sensor on a 2002 mitsubishi galant gtz?

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Posted on Jan 02, 2017

  • 2 Answers

SOURCE: 2002 mitsubishi galant

Has it overheated lately?
My wife overheated our Galant and it just stopped working, it cranks but that's it.
I pulled the sparkplugs and found them wrapped in a gewey jelly like substance. Like an oil/antifreeze combo.
I am going to replace the entire motor for $1000 as taking it to the mechanics to theorize and practice may cost more.

Posted on Dec 14, 2008

  • 1 Answer

SOURCE: Spinning My Wheels!! ---- P0421 Code Mitsubishi Galant

I have the same vehicle, same code P0421, changed the BOTH O2 sensors and the check engine light was still on, took it to my fathers garage and checked the Catalytic Converter, and it was ok later I found out that P0421 means that the vehicle doesn't have the proper mixture of gas and air (running richer) so I changed the MAX air flow sensor and wala the code went away.

Posted on Apr 14, 2009

  • 8 Answers

SOURCE: I have an '01 Galant

Im pretty sure the bank 2 is talking about by the catalitic converter and since is sensor 1 it should be before the CAT otherwise it should be on the exahust manifold prolly in the back of the engine.

Posted on Sep 19, 2008

  • 230 Answers

SOURCE: need to locate o2 sensor,

Pretty sure they are a 3 wire for the galant and they are located at various stages in the exhaust pipe. The look like this if you havent seen 1:
http://www.pelicanparts.com/bmw/techarticles/E36-O2_Sensor/pic4.jpg
If this is helpful don't forget to rate me!
Cheers

Posted on May 06, 2009

  • 54 Answers

SOURCE: P0135 on my 2002 galant but O2 sensor giving good readings

cou8ld be the heater core

Posted on Mar 04, 2010

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1 Answer

Position of oxygen sensors


all you have to do is follow the exhaust from the manifold back and you will come to the sensors. bank 1 O2 sensor is on the bank cylinder 1 is and bank 2 O2 sensor is located on the bank cylinder 2 is on. the first sensors you come across is sensor 1 then the next sensor you come across sensor 2 and so on. so you can have a sensor code like bank 1 sensor 2 meaning the sensor on bank one but the sensor is the 2nd sensor in the exhaust.

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1 Answer

2002 mitsubishi galant;which code would it be for


well thats a good question. the sensor may be ok and your engine is running lean, or the sensor is bad............its possible that its bad, but I would want it checked by a qualified repair shop first, you dont want to replace parts because you THINK they are bad, that just costs you even more money. The upstream is located in the bottom of the exhaust manifold. if its lean found out why..... vac leak?

Sep 23, 2009 | 2002 Mitsubishi Galant

3 Answers

Spinning My Wheels!! ---- P0421 Code Mitsubishi Galant


I have the same vehicle, same code P0421, changed the BOTH O2 sensors and the check engine light was still on, took it to my fathers garage and checked the Catalytic Converter, and it was ok later I found out that P0421 means that the vehicle doesn't have the proper mixture of gas and air (running richer) so I changed the MAX air flow sensor and wala the code went away.

Mar 30, 2009 | 2003 Mitsubishi Galant

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