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Thread: Part number for the universal 4 wire o2 sensors that fits our cars?

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    Forum User verified Feedback Score 4 (100%) Frostedbutts's Avatar
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    Part number for the universal 4 wire o2 sensors that fits our cars?

    Anyone know the 4 wire, M18 x 1.5 equivalents for universal oxygen sensors that fit our cars? The type that come without the plug, and you wire them into your existing harness.

    So far I think I have found Denso 234-4013 as a fitting model, but I'm not sure. I'll update this thread as a reference point for any fitting #s if anyone can 100% confirm.

    Working Sensors:

    NGK NTK-124
    Last edited by Frostedbutts; 04-14-2011 at 01:45 PM.

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    Twin Turbo verified Feedback Score 5 (100%) GTOJOE's Avatar
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    What model car do you have? 1st gen? 2nd gen? TT? NA? I believe they are the same but Mitsubishi ASA lists a differnt part between 1st and 2nd gen TTs. Part number MD165083 is the 1st gen part and RockAuto have this part listed.

    More Information for STANDARD MOTOR PRODUCTS SG1123

    And

    More Information for AIRTEX / WELLS 5S3743

    Found them by searching the site for the mit part number. Don't know about the connector though....
    1990 JDM GTO TT with Vi-PEC plug-in V44 EMS, TD04-13T's, 3SX Downpipe, MP Hi-flow cat, ARC SMIC's, Aeromotive Stealth 340LPH pump, Fuelab 515 FPR, Ninja Performance 75amp hotwire kit, oohnoo fuel loop & rail adapters, Nylon braided ethanol fuel line, NGK AFX Wideband, K&N FIPK, Iridium plugs, HKS Twin Power DLI, Turbo XS racing BOV, 3SX poly mounts, Custom 280km/h speedo.

    Waiting install
    Injector Dynamics 725cc Injectors.

    Build Thread

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    Twin Turbo verified Feedback Score 5 (100%) GTOJOE's Avatar
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    Hmmm actually those are the part numbers for the JDM cars and they only have 1 O2 sensor. IIRC FED SPEC has 2 and CAL SPEC have 4. Below are the part numbers taken from MIT ASA USDM

    FRONT O2 =
    MD305147 [for 95-97 model]
    MD343989 [for 97-99 model]

    REAR O2 =
    MD305149 [for 95-97 model]
    MD343988 [for 97-99 model]

    FRONT PRE CAT O2 =
    MD164422 [for 90-92 model]
    MD186991 [for 92-99 model]

    REAR PRE CAT O2 =
    MD164423 [for 90-92 model]
    MD186992 [for 92-99 model]

    USDM O2.jpg

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    Forum User verified Feedback Score 4 (100%) Frostedbutts's Avatar
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    1st gen TT.

    I've found the part numbers and tried to cross reference them to their universal equivalents, but RockAuto wasn't giving me what I was looking for. There's a slew of 4 wire Denso/Bosch/etc Universal O2 sensors on ebay for $25-35~ bucks, and I'm looking for which ones are the correct thread pitch (M18 x 1.5) for the 3/S. There were a couple threads on 3si about it, but the posted ebay links expire after 6 months.

    For future reference

    NTK-124 universal sensor fits the 3S. All you need to do is clip your old harness and wire it in to the new sensor, I'll post the wiring diagram and some pictures when I do it.

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