Swapping a JDM engine harness
06-02-06, 12:00 AM
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I just want to drive it.
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Swapping a JDM engine harness
I intend to buy a JDM front clip, my harness has seen better days. Do these interchange? I hope to use the JDM ecu so using the JDM harness would be a good thing... what are your thoughts?
06-02-06, 03:13 AM
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Do a search... 
https://www.rx7club.com/showthread.p...light=JDM+Swap
There is no ECU fitament isssues per se, ya just need to extend a ground wire or two and the JDM engine harness will reach to the passenger side of your US spec FD. However I will be updating the thread that will address that "brown" wire issue aka Fuel Thermosensor.
Also rynberg is right which is why i probably could not get my JDM ECU to run the car properly. I had ECU codes that included crank angle and another one I can't remember right now. I actually smoked out the entire mechanical shop with that ECU until I plugged my US ECU in.
And to anyone who reads this and wants to do a JDM engine swap, it's not plug and play and after doing this myself, heed the words of others. Unless you absolutely need all the parts that come with a front clip, I would rebuild the engine straight out if I were to do it all over again.
https://www.rx7club.com/showthread.p...light=JDM+Swap
There is no ECU fitament isssues per se, ya just need to extend a ground wire or two and the JDM engine harness will reach to the passenger side of your US spec FD. However I will be updating the thread that will address that "brown" wire issue aka Fuel Thermosensor.
Also rynberg is right which is why i probably could not get my JDM ECU to run the car properly. I had ECU codes that included crank angle and another one I can't remember right now. I actually smoked out the entire mechanical shop with that ECU until I plugged my US ECU in.
And to anyone who reads this and wants to do a JDM engine swap, it's not plug and play and after doing this myself, heed the words of others. Unless you absolutely need all the parts that come with a front clip, I would rebuild the engine straight out if I were to do it all over again.
Last edited by Red Suns; 06-02-06 at 03:19 AM.
06-02-06, 04:54 AM
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Tenseiga
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Originally Posted by Red Suns
Do a search...
https://www.rx7club.com/showthread.p...light=JDM+Swap
There is no ECU fitament isssues per se, ya just need to extend a ground wire or two and the JDM engine harness will reach to the passenger side of your US spec FD. However I will be updating the thread that will address that "brown" wire issue aka Fuel Thermosensor.
Also rynberg is right which is why i probably could not get my JDM ECU to run the car properly. I had ECU codes that included crank angle and another one I can't remember right now. I actually smoked out the entire mechanical shop with that ECU until I plugged my US ECU in.
And to anyone who reads this and wants to do a JDM engine swap, it's not plug and play and after doing this myself, heed the words of others. Unless you absolutely need all the parts that come with a front clip, I would rebuild the engine straight out if I were to do it all over again.
https://www.rx7club.com/showthread.p...light=JDM+Swap
There is no ECU fitament isssues per se, ya just need to extend a ground wire or two and the JDM engine harness will reach to the passenger side of your US spec FD. However I will be updating the thread that will address that "brown" wire issue aka Fuel Thermosensor.
Also rynberg is right which is why i probably could not get my JDM ECU to run the car properly. I had ECU codes that included crank angle and another one I can't remember right now. I actually smoked out the entire mechanical shop with that ECU until I plugged my US ECU in.
And to anyone who reads this and wants to do a JDM engine swap, it's not plug and play and after doing this myself, heed the words of others. Unless you absolutely need all the parts that come with a front clip, I would rebuild the engine straight out if I were to do it all over again.
You'll need one of the blue plugs from the USDM and there is that brown wire thing i remembered doing.
For the most part it's fairly stragiht forward if you have a schematic.
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