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Mustang O2 sensor compatible??

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    Mustang O2 sensor compatible??

    So a buddy of mine said theres a range of mustangs that have compatible O2 sensors for my 87 325is

    I guess its cheaper (price) than buying a new bosch sensor. anyone else heard of this? I wanna make sure i get the right one if this does fit and work fine.

    thanks
    Last edited by ROLLingKING; 07-27-2011, 11:03 AM. Reason: typo
    m20 is plenty. im simply a drifter.
    build thread -- http://www.r3vlimited.com/board/showthread.php?t=206510

    #2
    My understanding is that a narrowband O2 sensor is a narrowband O2 sensor and they all measure between 0 and 1V. As long as it has the appropriate wiring configuration ( 4 wire if your car is a 4 wire, 3 wire if your car is a 3 wire etc) and the threads on the sensor match your manifold, then it should be able to be used. Someone please correct me if I am wrong, but this is what I have learned over the years and I have used a handful of "universal" oxygen sensors that had direct fitment for different cars without problem.

    One thing I am definitely a big fan of is having a sensor that doesnt require cutting and splicing in order to put the right harness on. I am afraid that a bad splicing job will introduce some additional resistance which would reduce the accuracy of the sensor readings that the ECU sees.

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      #3
      very true
      thanks sagaris...if i could pick your brain some more tho

      are you saying that buying the cheaper O2 sensor and splicing the wires to connect is not a good idea. i understand what your saying to the faulty resistance but it should work if i splice it good right?

      or is running the risk of a faulty reading to the ECU really not worth it here? cause at this point i just want to grab a cheap mustang one and make it work
      m20 is plenty. im simply a drifter.
      build thread -- http://www.r3vlimited.com/board/showthread.php?t=206510

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        #4
        I have never had an issue with splicing it, as long as you can get a secure connection and protect it from moisture you should be just fine. A bad splicing job that could lead to moisture+corrosion is just something to consider.
        What kind of price are you looking at? I think I got mine with a factory E30 connector for $75

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          #5
          I went the "retro-fit" route. My o2 sensor was actually from a Ford Van. I can look at the PN when I get home.
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          The Never-ending Resto Mod

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            #6
            Bosch universal is more than an replacement one.
            https://www.facebook.com/BentOverRacing

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              #7
              I've used this one from a 90 Ford Mustang 5.0 on my 86 eta:



              Worked great. Cut off connector, splice wires in to old connector, enjoy.

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                #8
                On my 87 ETA, I just unplugged it. From my understanding the ECU just figures a median value if you unplug it. Car hasn't seemed to run any different.

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                  #9
                  Originally posted by klavender1 View Post
                  On my 87 ETA, I just unplugged it. From my understanding the ECU just figures a median value if you unplug it. Car hasn't seemed to run any different.
                  The ECU runs the pre-programmed fuel maps with the oxygen sensor unplugged, think of a factory-adjusted carburetor and how the settings might not work well on the car after time/mods/weather changes, requiring a re-adjustment. The oxygen sensor gives the ECU feedback which scales the base map values up or down to give a more accurate mixture which would be like a self-adjusting a carburetor on the fly . It is definitely beneficial to run with it plugged in.
                  Last edited by Sagaris; 07-28-2011, 05:33 AM.

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