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Thread: Wiring Injectors to eManage on 1JZ

  1. #1
    Forum Member 1st year Apprentice
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    Default Wiring Injectors to eManage on 1JZ

    Hey guys, as some of you might know the 1JZ only has 3 injector feed lines.
    I'm currently trying to wire up the injector harness on the 1JZ but am unsure of how to do it.

    I'm aware I need to double up the wires on the EMB

    On the ECU pin out the injector feed lines go
    Line1 Cylinders 1,4
    Line2 Cylinders 3,5
    and Line3 Cylinders 2,6

    So when I double up do I wire it up

    I/J CH-1 and 4 to #1
    I/J CH-3 and 5 to #2
    I/J CH-2 and 6 to #3

    or

    I/J CH-1 and 2 to #1
    I/J CH-3 and 4 to #2
    I/J CH-5 and 6 to #3

    Cheers,
    Benjamin
    you're cool if your car goes stututu

  2. #2
    Forum Member 1st year Apprentice
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    Default Re: Wiring Injectors to eManage on 1JZ

    Well this is interesting.
    After some advice, I've now wired it up the ECU

    EMB I/J CH-1 and 4 to #1 INJ ECU
    EMB I/J CH-3 and 5 to #2 INJ ECU
    EMB I/J CH-2 and 6 to #3 INJ ECU

    and it won't start now.
    It turns then dies almost straight away

    Also I don't get why my interaction light is always lit orange without the USB cable connected
    you're cool if your car goes stututu

  3. #3
    Backyard Fabricator Automotive Encyclopaedia
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    Default Re: Wiring Injectors to eManage on 1JZ

    In the japanese instructions I have here:

    Emanage I/J 1&2 go to Toyota ECU #1
    Emanage I/J 3&4 go to Toyota ECU #2
    Emanage I/J 5&6 go to Toyota ECU #3
    and the Emanage Injector ground wire goes to Toyota ECU terminal #E

    I've wired up 5 1jzgte's with emanage blues like this and they've all worked.

  4. #4
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    Default Re: Wiring Injectors to eManage on 1JZ

    Quote Originally Posted by JP View Post
    In the japanese instructions I have here:

    Emanage I/J 1&2 go to Toyota ECU #1
    Emanage I/J 3&4 go to Toyota ECU #2
    Emanage I/J 5&6 go to Toyota ECU #3
    and the Emanage Injector ground wire goes to Toyota ECU terminal #E

    I've wired up 5 1jzgte's with emanage blues like this and they've all worked.
    Yeah that's how I had it at first and the idle was really lumpy. Would you be able to forward me the Japanese instructions?
    you're cool if your car goes stututu

  5. #5
    JZZ20 Backyard Mechanic forey's Avatar
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    Default Re: Wiring Injectors to eManage on 1JZ

    do you have bigger than stock injectors without tuning the emanage for them?
    87' z20 Soarer - 1jz Gt35r -

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    Default Re: Wiring Injectors to eManage on 1JZ


  7. #7
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    Default Re: Wiring Injectors to eManage on 1JZ

    Quote Originally Posted by JP View Post
    I tried that first and it didn't work.
    you're cool if your car goes stututu

  8. #8
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    Default Re: Wiring Injectors to eManage on 1JZ

    Quote Originally Posted by forey View Post
    do you have bigger than stock injectors without tuning the emanage for them?
    got stock injectors
    you're cool if your car goes stututu

  9. #9
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    Default Re: Wiring Injectors to eManage on 1JZ

    are you sure you got the wiring correct?

    Is the emanage zero'd?

    Does it run fine with the injector taps disconnected?

  10. #10
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    Default Re: Wiring Injectors to eManage on 1JZ

    Quote Originally Posted by JP View Post
    are you sure you got the wiring correct?

    Is the emanage zero'd?

    Does it run fine with the injector taps disconnected?
    What do you mean by zero'd?

    It's rotary dials are configured for the 1JZ if that's what you were referring to.


    *edit* yeah it runs without the injector taps.
    you're cool if your car goes stututu

  11. #11
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    Default Re: Wiring Injectors to eManage on 1JZ

    When you connect with the support tool, do the Airflow and additional injection maps contain all zero's?

  12. #12
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    Default Re: Wiring Injectors to eManage on 1JZ

    Quote Originally Posted by JP View Post
    When you connect with the support tool, do the Airflow and additional injection maps contain all zero's?
    I can't get the support tool working on my laptop. I think there's something wrong with my cable.
    you're cool if your car goes stututu

  13. #13
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    Default Re: Wiring Injectors to eManage on 1JZ

    ok here's trouble.

    got the support tool to work, zero'd it. all good

    went to update it and knocked the cable on the laptop and interrupted the update and caused a communication error.

    now.. the active light keeps flashing green, amber, yellow
    you're cool if your car goes stututu

  14. #14
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    Default Re: Wiring Injectors to eManage on 1JZ

    can't re-apply the update? might have bricked it.

  15. #15
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    Default Re: Wiring Injectors to eManage on 1JZ

    Quote Originally Posted by JP View Post
    can't re-apply the update? might have bricked it.
    it starts and the active light goes green

    then about 20-30seconds in the active light turns off

    then few seconds after the update fails.


    is there anything else I can do?
    you're cool if your car goes stututu

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