hey guys here it is . . . im finally letting go of the N/A beast . . . and i need everyones help . . .


i got the whole front clip of a jdm t2 . . . and all i have is a few questions . . . first of if you all dont know i have a S4 N/A beefy . . .

questions:

can i use an s4 engine harness with the jdm ecu? if so how do i mod it?

i have an extra s5 engine harness. how do i mod that for the jdm ecu?

is there a write-up on wiring up the jdm t2 to a 86 N/A rx7??

should i use the stock jdm engine harness?

can i use the jdm cluster?

should i go right hand drive since i have the whole front clip?

plz rx7 fam help me out here lolz . . . aaroncakes i hope you have some good input on this . . .


thanks everyone



p.s ive checked up on threads but didnt find anything =(

 

can i use an s4 engine harness with the jdm ecu? if so how do i mod it? no

i have an extra s5 engine harness. how do i mod that for the jdm ecu? no

is there a write-up on wiring up the jdm t2 to a 86 N/A rx7?? no

should i use the stock jdm engine harness? no

can i use the jdm cluster? yes

should i go right hand drive since i have the whole front clip? no

use the correct us-spec series harness with the us-spec ecu

 

*Fixed

The j-spec cpus lack emissions stuff required for us-spec n suches

Do the RHD to be unique, your in LA theres like what a million shitty looking fc's there? may as well be unique in the city of ghetto

 

Keep the engine, transmission, boost sensor & AFM. Then get rid of all the rest of the JDM electronics. Use the S4 NA engine management harness & a US N332/333 ECU. Done.

It's possible the JDM ECU would work, but I can't say for sure that it wouldn't end up like the N374 S5 turbo ECU and decide not to fire injectors. The emissions differences don't even have any effect on emissions. The split air solenoid & 5th gear switch are next to useless, and the EGR does nothing on an engine that runs rich.

 

hmmm . . . i just need a for sure thing to prove to myself that i can use it . . . hmmm . .. i guess i still cant belive that i cant use the jdm engine with the jdm harness and ecu in a USDM rx7 body . . . i guess i need more info . .



thanks guyz keep on rolling them in . . . need all the help i can get

 

There is more to it than just plugging the engine management (EM) harness into the ECU. The front (F) harness also connects to it, and in your case it would be a USDM front harness, which will likely cause problems when mated to a JDM ECU. The F harness also happens to connect directly to the EM harness, as well, so all wires must be in the same locations on the plugs. Swapping the USDM front harness for the JDM front harness would be a massive undertaking, and would result in lots of rewiring / extending because everything is backwards. You'd basically be doing most of the work of the RHD conversion just to get the car wired up properly.

In generaly, using any TII/turbo EM harness in a turbo swap is a waste of time. Trying to use the extra short JDM turbo EM harness is an even bigger waste of time. The existing NA harnesses are all you need, and will make your life much easier.

 

so i really have to use a t2 US harness and ecu . . . well i wanna do the RHD convertion since i have all the parts . . . wat do you think?? . . . man i really dont have cash thats why i wanted to use the jdm components . . . hmmm . . .



anyone else have any ideas??

 

you can use your na harness and just get a tII ecu

 

wat so i can use the n/a harness?? . . . lolz . . . ummm where is aaroncakes?? . . . help!!! . . . okay wat can i mod on a s5 harness to make this work . . .



sad face

 

Read this thread: https://www.rx7club.com/2nd-gen-archive-72/s4-na-turbo-swap-details-813825/

And no, don't use any S5 wiring or electronics on an S4 car. It would mean lots more rewiring for no gain.

 

Oh god. I don't even know where to begin... I converted to RHD btw

https://www.rx7club.com/showthread.p...&highlight=rhd
https://www.rx7club.com/showthread.p...&highlight=rhd
https://www.rx7club.com/showthread.p...&highlight=rhd