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Thread: universal o2 sensor wiring help

  1. #1
    Registered User smoke187's Avatar
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    universal o2 sensor wiring help

    not sure how to wire this in stock harness wire colors are

    black/brown stripe
    black/white stripe
    black
    red/blue stripe

    i am going to be using a universal Bosch 4 wire o2 sensor

  2. #2
    Grumpy old man yunvmyegt's Avatar
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    see if that helps any....
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    92 protege lx-

    94 protege lx-

    95 escort gt-ms2e/ms2extra pre3.3alpha5 gslender v2.8-e85-vj23@12lbs----dead--

    are you a thinker, or a believer?

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    Registered User smoke187's Avatar
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    anyone got more ideas i found that red/blue stripe runs to the ecu

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    Registered User smoke187's Avatar
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    cant seem to figure this out because i don't have a stock sensor pigtail the wire colors are not the same as the harness for the oe sensor pigtail

  5. #5
    Registered User smoke187's Avatar
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    oe denso sensor and other cars it fits
    http://www.densoproducts.com/results...umber=234-4606

    engine harness wire colors are

    black/brown stripe
    black/white stripe
    black
    red/blue stripe

    bosch universal o2 sensor

    black
    white
    white
    grey

    oe o2 sensor with plug wire colors should be

    blue
    black
    black
    white

  6. #6
    SHAWN! MD323's Avatar
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    red/blue stripe is the signal and is the same as the 1 wires.

    im not sure about the rest but you should have an ign+ and two grounds?

    to find the hot get a test light and hook it up toeach of the remaining 3 wires and turn on the ignition and ground the ltester.

    the other two should just be grounded
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  7. #7
    Grumpy old man yunvmyegt's Avatar
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    dude its really not that hard, if your that bored drive out and pop the hood on my purple one..... or remind me later an ill take a phone pic while im there... and you can grab a pigtail....
    92 protege lx-

    94 protege lx-

    95 escort gt-ms2e/ms2extra pre3.3alpha5 gslender v2.8-e85-vj23@12lbs----dead--

    are you a thinker, or a believer?

  8. #8
    Registered User smoke187's Avatar
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    blah

  9. #9
    Registered User smoke187's Avatar
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    i found a plug now i just need to know what wire goes to what

    bosch universal

    white
    grey
    black x2


    94 protege o2 pigtail

    blue
    white
    black x2

  10. #10
    Registered User smoke187's Avatar
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    this is as far as i got following the pdf from boach is this right?


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  11. #11
    I think were in trouble... Dijadoit's Avatar
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    Or you can try this link also, that has color code on a 4 wire o2 sensor:
    http://www.aa1car.com/library/o2sensor.htm

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