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Thread: 1 wire VS 3 wire VS 4 wire O2 sensors, interchangeable??

  1. #1

    1 wire VS 3 wire VS 4 wire O2 sensors, interchangeable??

    Are any of the different styles of oxygen sensors interchangeable? The 4 wire O2 sensor on my daytona went and I'm wondering if I can swap in one of the single or 3 wire O2 sensors I have laying around rather than buying another one? I was under the impression that the 3 wire and the 4 wire were both heated, just that the 4 wire had an extra ground? And I thought even the one wire was useable even though it's not heated. I know I should just spring for a new one, but money is money and I have the sensors in the tool box. Anyone???

  2. #2
    Supporting Member Turbo Mopar Contributor iTurbo's Avatar
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    Re: 1 wire VS 3 wire VS 4 wire O2 sensors, interchangeable??

    Yes, they are pretty much compatible, except the connectors are different. The three wire doesn't have a ground circuit for the sensor element so it grounds through the exhaust manifold which isn't as good and could potentially throw the reading off by a tenth of a volt or so. The one wire isn't heated so it takes a bit longer to warm up. You'll have some splicing to do though, since the connectors are different between them.

  3. #3
    turbo addict
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    Re: 1 wire VS 3 wire VS 4 wire O2 sensors, interchangeable??

    www.fwdperformance.com

    they have the 4 wire o2 sensor for sale.

  4. #4
    Hoosier Daddy?? Turbo Mopar Staff Clay's Avatar
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    Re: 1 wire VS 3 wire VS 4 wire O2 sensors, interchangeable??

    Or get them here:

    http://cgi.ebay.com/ebaymotors/Mopar...spagenameZWD1V

    even cheaper!!!!!!! $25, Can't beat that price!

    clay
    Clay
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  5. #5
    Supporting Member Turbo Mopar Contributor iTurbo's Avatar
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    Re: 1 wire VS 3 wire VS 4 wire O2 sensors, interchangeable??

    I finally have a good excuse to convert my SL to 4-wire. Thanks for the link Clay.
    Jeremy Mitchell
    87 Shelby Lancer #127
    91 Dodge Spirit R/T
    08 Dodge Caliber SRT-4

  6. #6

    Re: 1 wire VS 3 wire VS 4 wire O2 sensors, interchangeable??

    Well I'll just splice the three wire one in for now, but can't beat that price for a new one, and hey, new is new.

  7. #7
    boostaholic
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    Re: 1 wire VS 3 wire VS 4 wire O2 sensors, interchangeable??

    Wow. 100% positive on 2700+ feedback!

  8. #8
    Hybrid booster
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    Re: 1 wire VS 3 wire VS 4 wire O2 sensors, interchangeable??

    Just swap the connector from the bad 4 wire to the 3 wire. You will have an empty cavity for the sensor ground, which is no big deal. The O2 volts will be a little lower now that the 3 wire grounds through the swing valve....... I would say to get a 4 wire when funds permit...........

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