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Thread: Wiring help w/ Camaro 3.4L/4L60E in a 81 Chevette

  1. #1
    Destruction Worker TechRod's Avatar
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    Wiring help w/ Camaro 3.4L/4L60E in a 81 Chevette

    I'm in need of help with the wiring on my engine swap, a 1994 Camaro 3.4L/4L60E in a 1981 Chevette.
    I'm in the process of modifying and merging the wiring harnesses from both vehicles.
    I have stripped out all of the unnecessary wiring from the Camaro harness. ABS, SRS, smog pump, power steering, A/C, and cruise have all been removed.
    The alternator and coil packs have both been relocated to opposite sides of the engine compartment compared to the Camaro.
    I have the PCM mounted and wired up the coil packs, alternator, injectors, both O2 sensors, MAP, KS, IAT, TPS, CTS, OPSU, crank and cam sensors.
    Here's the problem... a mystery plug!





    It's a 2-pin plug with brown and black/white for wire colors.
    Does anyone recognize this?
    I believe it was on the driver's side on the Camaro.
    Any help would be greatly appreciated.
    Also, any links to information on merging wiring harnesses during an engine swap would be great.
    I'm trying to figure out where exactly Camaro wiring should meet Chevette wiring.
    Please forgive the lousy cell pics.
    "It's your car. Do with it what you wish, but as you enter this unknown world you will need to invent the wheel all over again. For the adventurous and those that are backyard mechanics who have nothing but time you might like this. Most have plenty of frustrating moments and the process usually takes significantly longer then what anyone could imagine. The end result of this conversion is completely up to you." - Jon McCullough of BMCautos.com

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  3. #2
    Destruction Worker TechRod's Avatar
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    I keep looking but I can't see where it would go.
    Could this be an A/C plug that I missed when pruning the wiring harness?
    "It's your car. Do with it what you wish, but as you enter this unknown world you will need to invent the wheel all over again. For the adventurous and those that are backyard mechanics who have nothing but time you might like this. Most have plenty of frustrating moments and the process usually takes significantly longer then what anyone could imagine. The end result of this conversion is completely up to you." - Jon McCullough of BMCautos.com

  4. #3
    Because stock sucks... pocket-rocket's Avatar
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    Don't the old style AC plugs normally have the clips on the sides, not on the top?
    -60v6's 2nd Jon M.
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  5. #4
    Destruction Worker TechRod's Avatar
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    Is that right?
    Any idea where it might go, or if it's even needed?
    "It's your car. Do with it what you wish, but as you enter this unknown world you will need to invent the wheel all over again. For the adventurous and those that are backyard mechanics who have nothing but time you might like this. Most have plenty of frustrating moments and the process usually takes significantly longer then what anyone could imagine. The end result of this conversion is completely up to you." - Jon McCullough of BMCautos.com

  6. #5
    Max tkoforpresident's Avatar
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    that's not for the alternator is it?

    I don't recognize it so it must be something obscure like A/C etc.

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    Destruction Worker TechRod's Avatar
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    I have a 105 amp stock replacement alternator that has a plug with a single red wire and the charging stud on the back, is yours like that?
    I'd like to think it's something I just forgot to remove from the harness but I still have the feeling I forgot to plug something in.
    I suppose I'll know soon enough as I'll be starting it for the first time in the next couple of weeks, then we'll see if it throws any codes.
    "It's your car. Do with it what you wish, but as you enter this unknown world you will need to invent the wheel all over again. For the adventurous and those that are backyard mechanics who have nothing but time you might like this. Most have plenty of frustrating moments and the process usually takes significantly longer then what anyone could imagine. The end result of this conversion is completely up to you." - Jon McCullough of BMCautos.com

  8. #7
    Because stock sucks... pocket-rocket's Avatar
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    Did you remove all the garbage you didn't need with the help of a wiring diagram? If so, that would show how number of wires/color of wires and what those wires went to.
    -60v6's 2nd Jon M.
    91 Black Lumina Z34-5 speed
    92 Black Lumina Z34 5 speed
    94 Red Ford Ranger 2WD-5 speed
    Quote Originally Posted by TGP37 View Post
    Step up to a man trans, step up to a 5-speed.

  9. #8
    Destruction Worker TechRod's Avatar
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    I suppose that's the problem, I can't seem to find this plug or combination of wire colors on a connector in the TSM for the Camaro.
    "It's your car. Do with it what you wish, but as you enter this unknown world you will need to invent the wheel all over again. For the adventurous and those that are backyard mechanics who have nothing but time you might like this. Most have plenty of frustrating moments and the process usually takes significantly longer then what anyone could imagine. The end result of this conversion is completely up to you." - Jon McCullough of BMCautos.com

  10. #9
    Destruction Worker TechRod's Avatar
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    It turned out to be the plug to the oil level sender that was deleted
    Thanks madtuner!
    "It's your car. Do with it what you wish, but as you enter this unknown world you will need to invent the wheel all over again. For the adventurous and those that are backyard mechanics who have nothing but time you might like this. Most have plenty of frustrating moments and the process usually takes significantly longer then what anyone could imagine. The end result of this conversion is completely up to you." - Jon McCullough of BMCautos.com

  11. #10
    Did you get her fired up?
    Vids! lol

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