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O2 sensors for a mazda mpv

  #1  
Old 04-22-2012, 11:08 AM
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Default O2 sensors for a mazda mpv

Hello all. I was wondering if someone here can help me out. I bought a used 2000 mazda mpv. The only problem with it is that the catalytic converter was stolen off it a long with the two sensors that where there.

I have bought a new cat and found the right sensors to put there. What I need to do now is drill some holes and place the sensors. I just need to know how far apart to put the sensors. Does anyone know. ???
 
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Old 04-22-2012, 01:25 PM
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I hope I explained that all right. If anyone needs more info, just holler.
 
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Old 04-22-2012, 01:37 PM
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1 Before and 1 after the catalytic converter. I have a 2006 Mazda 6, and my picture shows the ones @ the pre-cat. They are basically really close before and after it. The one before monitors the air fuel ratio, the one after monitors the cat.

 
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Old 04-22-2012, 01:41 PM
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Thank you for answering me. So there is no preset distance between the one before the cat and the one after. ??? My mechanic says that there is a bit of "grace space" there I guess you could call it where they will work but the gas mileage won't be as good but that all depends on how fare apart they are from each other.
 
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Old 04-22-2012, 01:45 PM
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Originally Posted by bigguy View Post
Thank you for answering me. So there is no preset distance between the one before the cat and the one after. ??? My mechanic says that there is a bit of "grace space" there I guess you could call it where they will work but the gas mileage won't be as good but that all depends on how fare apart they are from each other.
A couple inches before and after cat would be fine.
 
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Old 04-22-2012, 01:56 PM
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Thank you for the answer. So one of them does NOT go into the cat at all right. Just before and after it. ???
 
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Old 04-22-2012, 01:59 PM
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Correct. Just before and after it. Some catalytics have some extra room before or after the honeycomb. If your not sure it is best to put it before and after it. You don't want to screw up the honeycomb.
 
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Old 04-22-2012, 02:04 PM
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Thank you sir. I will give this a shot and see what happens. I have a lot of extra pipe and a welder available so as long as I don't drill holes in the cat itself I should be fine. Thank you for your time.
 
  #9  
Old 04-22-2012, 02:06 PM
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Awesome. Git Er Dun!
I'll be watchin NASCAR. Logging off!
 
  #10  
Old 04-22-2012, 02:09 PM
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Hope it's a good race. Have fun.
 
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