Question about 2002 Mitsubishi Montero

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Need to know placement of heated oxygen sensor

2001 mitsubishi montero 3.5 Need to know placement of heated oxygen sensor bank 2 sensor 1

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The O2 sensors are located in the exhaust piping.
One (bank 1) is on the engine side of the Catalytic convertor.
Second (bank 2) is on the other side (exhaust end).

There are manufacturers that make universal fits that will go in either location. Be sure to specify the rear sensor when you go to the parts store.

It will look like this....

need to know placement of heated oxygen sensor - cfea0cf.jpg
It threads right into the exhaust pipe.

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Posted on Mar 05, 2009

  • providence automobile Aug 14, 2012

    is this for rlexus rx300?

  • reitze01
    reitze01 Sep 03, 2012

    I read Bank = side, Sensor = front-back. So Sensor 1 = front of exhaust system, Bank 2 = side with cyl2. (bank1=side w/ cyl 1).)

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I read Bank = side, Sensor = front-back. So Sensor 1 = front of exhaust system, Bank 2 = side with cyl2. (bank1=side w/ cyl 1).)

Posted on Sep 03, 2012

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See a visual diagram of heat oxygen sensor bank 1 sensor 2 for ford taurus 2001


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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.
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- 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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1 Answer

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17c3292.jpg

Fig. Heated Oxygen (HO2S) location (sensor 1)-2.4L engine

db6f426.jpg

Fig. Heated Oxygen (HO2S) location (sensor 2)-2.4L engine

99e413c.jpg

Fig. Heated Oxygen (HO2S) location (bank 1, sensor 2) (bank 2, sensor 2)-2.7L engine

e2a250f.jpg

Fig. Heated Oxygen (HO2S) location (bank 2, sensor 1)-2.7L engine

I hope help you with this (rated this help). Good luck.

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