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Hester_prynne

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Posts posted by Hester_prynne

  1. Sketch_hs says he used the stock 280z tach with his 1jz motor by removing the inline resistor. I tried this with two different tach wires coming from the 1jz motor and neither of them worked. Has anyone else done this with success?

  2. What did you do about fuses? Did you use the Datsun fuse box? If not, what? Did you add any fuses anywhere?

     

    I'm also curios about the wiring for the alternator.

     

    Your thread has helped me out a tone with my swap. Thanks a ton.

  3. I am creating this thread to help others looking for info on wiring a 1jza80 motor into a Z. I have been researching for a few weeks for this swap. When it comes to experience, the most I've done is put an after-market radio into a car. At first it was a little daunting but after getting help from "frankdms" on SupraForums, i began to understand. In the past two days I have been able to get the motor running.

     

    Feel free to critique what I've done and add your own info or ask questions.

     

    My vehicle: 1978 Datsun 280z

    My motor: 1jza80 w/ R154

     

    To get the motor started and running, nothing else, you just need to worry about two plugs on the 1jz harness.

     

    IH1

    2012-04-09_16-04-49_251.jpgIH1.jpg

    3- (RED & BLACK) switched +12V **** EFI

    9- (GREY) switched +12V ***** IGSW signal from ignition

    10- (BLACK w/BLUE STRIPE) ***** Starter signal

    14- (BLACK) switched +12V ***** Ignition coils and injectors

     

    EA2

    2012-04-09_16-05-03_291.jpgEA2.jpg

    1-(BLACK & YELLOW) constant +12V

    2-(BLACK & ORANGE) switched ground

    5-(BLACK & RED) switched +12V

     

     

     

    You need to use a 4 lead relay. Since I'm not keeping the A/C, I reused the 280z A/C relay:

    EA2#1 goes to 30 lead of the relay

    EA2#2 goes to 86 lead of the relay

    EA2#3 goes to 87 lead of the relay

    Lead 85 of the relay goes to a ground.

     

    That is all I have for now. I keep this thread updated as I go.

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