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2005 Mazda MPV 3.0 V6 Oxygen Sensor

  #1  
Old 05-30-2011, 10:40 AM
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Default 2005 Mazda MPV 3.0 V6 Oxygen Sensor

Hi,

I own a 2005 Mazda MVP, my vehciles sevice engine light came on, since that i took the vehicle to auto zone to check the code and came up with bad 02 oxygen sensor, i need to know how to replace. is there more than one, if so which one should i replace. what is the difficulty on replacing, please advice, any information will really help. dont have much money to put in the shop.

thanks to all
 
  #2  
Old 05-21-2012, 11:53 PM
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Which Oxygen sensor is it? There are like 3-4 different ones. If you know the Code they got that would actually give you a good spot to be looking since it would give you the location more when its looked up online.

My code i got is PO155 = Oxygen sensor 1 Bank 2
(Ofcourse i still never got it fixed.. Replaced it but something else still making it not work..)
 

Last edited by Deathwish657; 05-22-2012 at 12:21 AM. Reason: Wrong DTC Code..
  #3  
Old 05-22-2012, 07:34 AM
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Originally Posted by Deathwish657 View Post
Which Oxygen sensor is it?
You won't get a response. That was 1 year ago. Damn thread sort.
 
  #4  
Old 05-23-2012, 03:31 AM
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LOL. Yea.. I realized that after i posted :P
 
  #5  
Old 05-25-2012, 05:40 PM
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Default Po155

Hi all I have a Mazda Tribute 2001 with the check engine light on. I have had it diagnosed as PO155 heater core circuit. Is this sensor easy to change as there is two upstream sensors. Also My fuel economy has gone through the roof is this to do with this sensor.

Steff
 
  #6  
Old 05-26-2012, 06:48 PM
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Bank 2 is where cylinder #2 is at. (Cylinder #2 is in the front of engine, closest to radiator) Sensor 1 is the sensor before the catalic converter. In total, there are 4 sensors.
2 Upstreams, 2 Downstreams.

They are not hard to replace, just gotta get the o2 socket set to get them, since they are in a tight spot. Connection for bank 2 sensor 1 is near the cooling hoses, under waterpump area.
 

Last edited by Deathwish657; 10-31-2012 at 01:12 AM. Reason: Wrong info.
  #7  
Old 07-18-2017, 02:04 AM
Join Date: Jul 2012
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Wow great information, I wish it had pictures
 
  #8  
Old 09-13-2017, 10:11 PM
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had both pre cat sensors replaced and now no more CEL and back to normal fuel mileage
 
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