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Thread: Where do these connectors plug in?

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    Forum User verified Feedback Score 1 (100%) Amphiron's Avatar
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    Where do these connectors plug in?

    Where do these go and is this why my coolant gauge isn't working? They stem off of the same harness the alternator goes to and shoots down by the radiator but I can't find anything to plug them into.

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    Better than that "other" place Not Verified Feedback Score 2 (100%) x2xtreme360's Avatar
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    Are they down low? They look like the secondary O2 sensor plugs.

    EDIT: yea the pic looks like it was taken by the subframe. I'm sticking with my answer.

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    Wrench Monkey Not Verified Feedback Score 1 (100%) TwIzTeD_3kGt's Avatar
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    Downstream O2 sensor connectors.

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    Forum User verified Feedback Score 1 (100%) Amphiron's Avatar
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    Hmm I'm starting to wonder if these were ever plugged in at all because theres nothing around them to plug into. Maybe thats why I was getting a CEL before the rebuild.

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    Better than that "other" place Not Verified Feedback Score 2 (100%) x2xtreme360's Avatar
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    Quote Originally Posted by Amphiron View Post
    Hmm I'm starting to wonder if these were ever plugged in at all because theres nothing around them to plug into. Maybe thats why I was getting a CEL before the rebuild.
    The plugs would plug into the secondary o2 sensors... and if they aren't there, then you wouldn't see anything to plug them into.

    Do you have an aftermarket DP with no secondary o2 bungs by any chance?

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    Wrench Monkey Not Verified Feedback Score 1 (100%) TwIzTeD_3kGt's Avatar
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    You probably just have a Fed-spec and not a Cali-spec. Read the sticker on the hood that says "This vehicle conforms to...". If you don't see "California regulations" somewhere in that paragraph, you've found your answer.

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    If they are coming off of your harness for the alternator, then they are the upstream front O2 sensor and the AC compressor. The down stream O2 sensors that the other people are talking about come off of the engine harness.

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    Forum User verified Feedback Score 1 (100%) Amphiron's Avatar
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    Should my downpipe have a o2 sensor coming off it? because on the exhaust theres only 1 o2 sensor and I think its behind or around the precat. Thanks everyone for the help, a lot more replies then I got on that other shithole =]

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    Quote Originally Posted by Hans@GZP View Post
    If they are coming off of your harness for the alternator, then they are the upstream front O2 sensor and the AC compressor. The down stream O2 sensors that the other people are talking about come off of the engine harness.
    Damn, you're good.

    Again, not sure if fed specs had secondary 02 sensors, but if they did, they'd be on the downpipe.

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    Quote Originally Posted by Amphiron View Post
    Should my downpipe have a o2 sensor coming off it? because on the exhaust theres only 1 o2 sensor and I think its behind or around the precat. Thanks everyone for the help, a lot more replies then I got on that other shithole =]
    Are you running a jspec engine? If so, there will be only one O2 sensor, but it will be in the non-turbo location. If you have one in your downpipe, you should really have 2... then it would be a cali spec car. There should be 1 O2 sensor directly after each turbo (before the actual precat material) and another sensor after each precat (if you are cali spec) that are located in the downpipe.

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