FD runs the hills

i put a jdm motor in my 93 r1 and i'm using the us wiring harness ecu and emissions... most of the plugs fit but theres a few that dont match up... what do i do?

Mahjik

iTrader: (1)

Which plugs don't match? JDM engines typically do not have EGR or AWS.

FD runs the hills

they look like they go into some kinda vacuum box i guess

BADSVN2000

Take some pics man I should be able to help as we only have the JDM engines here. Also do you know what year of FD your engine came out of? if its 96 up, I guarantee you will have to swap over to your original US setup as the wiring looms completly change from 96 up!

FD runs the hills

one it didnt say the year of the motor just the miles and i dont have the origional motor.... help any?

Mahjik

iTrader: (1)

If you have one from a later model which had the "black box" as opposed to the solenoid rack, you'll probably have to find someone with a damaged harness and get their connectors to splice in.

FD runs the hills

and if its not a later model?

Mahjik

iTrader: (1)

Then all the clips will be the same.

FD runs the hills

so i pretty much need "black" box clips from a late model jdm motor?

Mahjik

iTrader: (1)

Sorry, I had that backwards. If you have the "black box" instead of the solenoid rack, then you'll need to identify which connectors are for the proper turbo control and then "wiring up something" to connect to them. That could be something from a JDM harness or something custom.

Is this what you have?
https://www.rx7club.com/showpost.php...9&postcount=74

FD runs the hills

yes that would be exactly it

Mahjik

iTrader: (1)

My advice would be to buy someone's US spec solenoid rack (and solenoids). Then your harness will plug right up. They are always up for sale as people go single turbo or non-sequential.

FD runs the hills

and the rack will plug in no problem?

Mahjik

iTrader: (1)

Yes, the US based models ONLY had the solenoid rack. They never saw the updated "black box" as it's commonly referred to.

FD runs the hills

sweet! hey thanks alot

BADSVN2000

Just thought I would give you my 2 cents on this.

If you have a late model engine, the wiring harness is not only different with what it connects to but the wiring is configured completley different and not only that the ecu plugs will NOT go into your ecu as they went from an 8bit to a 16bit setup so alot of the connectors changed!

Another thing you need to know is with the series 7 and 8 engines the loom for the gearbox is not part of the ECU harness like it is in the series 6 (first 3rd gen 1991 - 1995) harnes. The newer version gearbox loom connects to the cars main harness in the engine bay, NOT the ECU loom like the earlier model.

If it were me I would source a used engine harness, rats nest, emissions plate and coils packs etc as they are all different!!!

Trust me it is more trouble than its worth to keep the newer stuff in than to replace it with older series 6 stuff.

FD runs the hills

i got everything stock for my year and model... my engine harness was 1200 from mazda just for my car and i got one of the last 2 available for it