FAULT CODE PO154 AND P0174B ITS ON A 2001 MITSUBISHI MONTERO 3.0 AND WICH ONE OF THE 02 SENSOR IS IT BEFORE THE CAT OR AFTER

Question 1

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I have a 1992 mitsubishi monteroy my nox are to high

run the fault codes to determine which exhaust sensor is faulty
check the cat converter is working

Apr 08, 2015 • 1992 Mitsubishi Montero

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Could the catalytic converter cause this code 2002 mitsubishi montero sport 3.5 p0161 code changed the o2 sensor and still get the same code could the catalytic converter cause this code

No it has nothing to do with the cat.
Code 161 is for a problem with the heater circuit for sensor 2 bank two. Either the heater in the sensor has failed, or the circuit that powers the heater is not working.

Feb 22, 2015 • 2002 Mitsubishi Montero Sport

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Hey I'm mike. Here want going on my s10 blazer

to start with the in front of the cat is different to the one after the cat and will produce different signals for the ecm and that will throw up fault codes

Code p0154 refers to heated oxygen sensor(HO2S) 1 bank 2--no activity detected--===causes --Wiring--HO2S-- ECM

replace with correct sensor (heated sensor )

code p0300 refers to random/ multiple misfires detected---===causes---spark plugs--HT leads --injectors---ignition coil/s---low compression---wiring

The HT lead should be replaced as by pulling it off the plug the internal resistance has been damaged. Check the injectors are firing correctly as my guess is that the injector is faulty and that is what set you to change the HO2S sensor

Aug 31, 2014 • Cars & Trucks

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1999 Mitsubishi Montero

Be the first to answer Apr 03, 2014 • 1999 Mitsubishi Montero

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1answer

P0154

Your exhaust has four 02 sensors. Code PO154 refers to no activity at bank two, sensor one.,Typically 02 sensors are good for up to 100K miles, after that their performance declines. You can try removing the sensor and shake it closely, next to your ear ( listen for a rattle). If you hear a noise while you are shaking it. The 02 sensor is junk. The side that Cylinder #1 is on is "Bank one" the other side is "Bank Two". Sensor one refers to the upstream senor (the sensor located before the CAT. Sensor Two would refer to the "Down Stream" sensor. Which refers to the 02 sensor located after the CAT. I hope that helps. Please write back if you have more details or questions. Good luck.

Mar 01, 2014 • Cadillac Catera Cars & Trucks

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Mitsubishi Montero '02. Just had the O2 sensor replaced and the light came back on showing Code PO431 catalytic converter Bank 2. They say it'll cost me at least $1000 to fix it. Is this correct? Anyway...

their are 2 O2 sensors one before the cat and one after ,try changing the other one first before you go to a new cat which is expensive to say the least

Dec 28, 2010 • Mitsubishi Montero Cars & Trucks

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Code po154 what does it mean and what do i do to fix

Hi,
The reason for code po154 is that there is no activity detected on the Bank 2 Sensor 1 . But there is also a bulletin that reprograms the computer for a false readout. Basically you need to monitor the O2 sensor action. If it looks in good condition then the reprogram needs to be done. If not, you need to replace the O2 sensor.

Thank you !!

May 31, 2010 • 2003 Mitsubishi Montero Sport

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1answer

I have 2002 mitsubishi montero sport 3.5L with a check engine code for O2 sensor no circuit activity Bank 2 Sensor 1. Any Help?

replace the o2 sensor the one before the cat converter with a quailty sensor like a denso brand o2 sensor

Apr 08, 2010 • 2002 Mitsubishi Montero Sport

1helpful

1answer

Mitsubishi pinin fault code P0421

yes this is your catalytic convertor is clogged you have to change before is damages ur o2 sensors

Feb 12, 2010 • 2001 Mitsubishi Montero

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1answer

2001 Mitsubishi montero sport check engine light and codes

The Cat code could have cleared itself if the computer doesn't detect a problem anymore. Fix the EGR problem as it is still active.

May 28, 2009 • 2001 Mitsubishi Montero Sport 4WD

Question 2

Anonymous

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Posted on Apr 20, 2010

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The error code should tell you which bank and sensor you are looking for. with that information:

bank one on a montero sport is on the passengers side.
bank two is the drivers side.

sensor one is before the converter,
sensor two is after the converter.

each bank has two sensors. on each bank there is a sensor with a black and a gray connector, and no they will not interchange. connectors are different.

besides disconnect the actual o2 sensor, you can just disconnect the plug to be sure you got the right one. the plugs are hidden in the sides, just follow the cables. you could disconnect the plug of the one that you thing is the wrong one and check again the error code to see if you are getting the same error. if you are getting a different one, then you disconnected the wrong one.

good luck with the change. some wd40 or liquid wrench will help with the removal of the sensor.

Anonymous Sep 27, 2011

hi i need help with my rear o2 sensor.i disconnected both the plugs of the rear sensor on my 2000 montero sport and then i got confused which goest to the right harness. i just want to ask if bank 2 sensor 2 goes to the grey or black connector thanks!

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FAULT CODE PO154 AND P0174B ITS ON A 2001 MITSUBISHI MONTERO 3.0 AND WICH ONE OF THE 02 SENSOR IS IT BEFORE THE CAT OR AFTER

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Anonymous

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Related Questions:

I have a 1992 mitsubishi monteroy my nox are to high

Could the catalytic converter cause this code 2002 mitsubishi montero sport 3.5 p0161 code changed the o2 sensor and still get the same code could the catalytic converter cause this code

Hey I'm mike. Here want going on my s10 blazer

1999 Mitsubishi Montero

P0154

Mitsubishi Montero '02. Just had the O2 sensor replaced and the light came back on showing Code PO431 catalytic converter Bank 2. They say it'll cost me at least $1000 to fix it. Is this correct? Anyway...

Code po154 what does it mean and what do i do to fix

I have 2002 mitsubishi montero sport 3.5L with a check engine code for O2 sensor no circuit activity Bank 2 Sensor 1. Any Help?

Mitsubishi pinin fault code P0421

2001 Mitsubishi montero sport check engine light and codes

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FAULT CODE PO154 AND P0174B ITS ON A 2001 MITSUBISHI MONTERO 3.0 AND WICH ONE OF THE 02 SENSOR IS IT BEFORE THE CAT OR AFTER

1 Answer

Anonymous

Add Your Answer

Attachments: Added items

Related Questions:

I have a 1992 mitsubishi monteroy my nox are to high

Could the catalytic converter cause this code 2002 mitsubishi montero sport 3.5 p0161 code changed the o2 sensor and still get the same code could the catalytic converter cause this code

Hey I'm mike. Here want going on my s10 blazer

1999 Mitsubishi Montero

P0154

Mitsubishi Montero '02. Just had the O2 sensor replaced and the light came back on showing Code PO431 catalytic converter Bank 2. They say it'll cost me at least $1000 to fix it. Is this correct? Anyway...

Code po154 what does it mean and what do i do to fix

I have 2002 mitsubishi montero sport 3.5L with a check engine code for O2 sensor no circuit activity Bank 2 Sensor 1. Any Help?

Mitsubishi pinin fault code P0421

2001 Mitsubishi montero sport check engine light and codes

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2000 Montero Sport

I have a 1992 mitsubishi monteroy my nox are to high

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