Hi i really need some help. I bought a 13Bre Cosmo and it came with cut Loom and i also have the ecu for it. I dont have enough $$$ to buy an aftermarket ecu but i have an Rx7 s5 and s6 loom+ s5 ecu, in my posession. So my question to you dear fellows is can i use the s5 or the s6 loom wiring with the Cosmo inputs to wire up my engine from the Ecu to engine????



Is it "DO-ABLE"? if yes i would also like to use the s5 coils, leads, ect.

Also im now going to be running a single to4e turbo with the cosmo and i have gotten rid of the pesky "RATS NEST" Lol



If its not do-able what other rx7 wiring could i use for the job, because i cant find cosmo wiring anywhere here in New Zealand. Would it be better if i use s5 ecu with its loom??



Please help me out..

Thanks

Jay

 

Ive never done it myself, but im pretty sure you can run the Cosmo on the S5 turbo ECU+harness.

Its been a while since I looked into it.

 

Hey you got the cosmo wiring diagram???

 

we did it with the S5 ecu and harness, its almost plug an play on the motor.



if you didnt get the coils and dash harness with the cosmo ECU, its not worth doing. wiring diagram is floating around, but its in japanese only

 

Your best bet is to do a s5 ecu with the corresponding engine harness. then you just use the terminals on the RE. I am great at wiring and its not that hard once you have the wiring diagram. Keep your self organized and write down any extensions you do on a paper and what color wires you used. also write down what color wire you mated to what color with for future reference and keep these notes in a safe place TRUST ME.

 

Ohhh and you cant use the Cosmo ecu at all unless you are going to use the Cosmo auto transmission without it wont work.

 

Hi thank mamn really appreciate it. Im just stuck because i dont have the Cosmo wiring diagram neither the S5 one...Any idea or link you could direct me to to get hold of these diagrams? And ill be using all ecu and loom from S5 as well as coils and igniters...Any help is much appreciaited you dont know how happy i am when i get help from you guys! A++++

 

Here you go my man go to page 9 that should put you on the right track.

Factory Service Manual

 

THANK YOU! this is diagram for s5? do i need a wiring diagram for the Cosmo? i mean i will just replace the terminals/ plugs from the ones on the cosmo to the s5 loom...id have to tell which is what from the cosmo loom?



Much appreciated

 

yeah that is s5 now that im looking at it it doesn't give you wire colors?????



Use the Cosmo plugs just splice in one bye one there are not to many wires once you remove all the emissions crap. It will take a while to sort it all but can be done. Like i said keep organized label wires as you go identifying them.