JDM wiring harness on a spec
 

anyone used a jdm 13b rew manual engine harness on a A-Spec version before?

i did before and its alot of work. first you need to modify the (blue connector on the jspec engine harness) x-05 connector to fit on the dash connector, re-pin blk/yel wire x-05 jspec harness to blk/org dash, this is the power source for the injectors, then also if you dont want the fuel thermo check light on, you have to re-pin the brwn/yel wire from the jspec x-05 connector and pin it to x-14 connector blue wire.

is this just an estimate of what i have to do or is there more to do?

its the main thing you have to do, but let me verify all the other wires on the jpecs x-05 connector, so you can wire it up properly on the dash.

If you can please explain more about what exactly needs to be done.Im pretty close to the end of the swap and I was under the assumption it was only the 12 wire blue connector that needs work.

ORIGINAL PIN DIAGRAM OF USDM X-05 (F) TO X-05 (EM) CONNECTOR


X-05 FRONT 10 PIN CONNECTOR

| G |BL/G|XXXX XXXX| V/W | Y |
|G/W|W/G| B/W | G\B | B/O | BR/W |


X-05 USDM (EM)10 PIN CONNECTOR

|B/L|BR/B| XXXXX | Y | B/G |
|BR | R |B/W|W/L | B/Y |BR\W|


X-05 JDM (EM)12 PIN CONNECTOR

| B/L |BR/B | Y | XXXXXXXXXXX| B/G | W/L |
|BR | R | B/W | BR\Y | B/Y | XXX |BR/W|

NOTE: PLEASE REMOVED ALL PINS BEFORE STARTING THIS MODIFICATION. NEXT, YOU NEED TO MODIFY THE JDM X-05 12 PIN (BLUE) CONNECTOR AND MAKE IT TO A 10 PIN CONNECTOR. I USED A DREMEL TO CUT MY OFF. CUT THE B/L AND BR PIN CONNECTOR OFF.



X-05 USDM (EM)10PINS

B/G - EGR
Y- 1ST GEAR
BR/B - TPS
BR/W - PRESS SENSOR
B/Y - INJECTOR 12V
W/L - COOLING RELAY
B/W - SOLENOID VALVES
R - 2ND GEAR SWITCH
BR - TRANNY
B/L - EGR


X-05 JDM (EM)11 PINS
B/L-EGR
BR/B - TPS
Y - 1ST GEAR
BR - TRANNY
R - 2ND GEAR SWITCH
BR/Y - FUEL TEMP SENSOR
BR/W - PRESS SENSOR
B/Y - INJECTORS 12V
B/W - SOLENOID VALVES
B/G- EGR
W/L - COOLING RELAY


NOTE: BR/Y WIRE(FUEL TEMP SENSOR) GOES TO X-14 AND PIN IT TO THE BLUE WIRE ON X-14 (white connector under the DASH).

i hope this explains it. LMK if you have any questions.

So after this modification that you talked about, the JDM harness would plug right up in place like a USDM harness?

any pics. that would help :)

Ya, after modifying the plug and repining everything, it should plug right in like the usdm x-05 connector. I'll post a pic when I get a chance.

Ask the MODS to Sticky this thread...

I'll post up a picture of my setup too for the record. Very simple to do. Solder it for a good connection.

thanks for your help guys! much appreciated

aight this is the way i did my mod on the jdm x-05. sorry for the big pictures and pictures being blurry. i took it with my iphone holding a flash light so you can see it better.

Attachment 721473
Attachment 721474
Attachment 721475
http://i2.photobucket.com/albums/y2/jaedene/x051.jpg

did you guys try it yet?

Can some please post up what each of US 10 pin NON EMISSION connector wires stand for. I need to know so i can match them up.

Ive been searching for hours through the forum and fsm with no definition to the colors

do you have the jdm male connector? I had one when i bought my clip, all I did was cut off the male connector and solder it according to the same color off the USDM one. After that it just plugs right in.

problem is EM cars have matching colors to the jdm harness but non EM cars only have 3 matching colors.

Bump
USDM (F) front harness to JDM (EM) engine harness
Ive got a few wires down from the wiring diagrams but not sure/dont know a few.

did you follow the step above, im running the same set up your doing ( usdm front and jdm em harness. you dont match the wires, just follow the step i did and you should be good. trust me, ive check where all the wires go one by one and prolly more than 30x.


for example usdm front to jdm EM
G - BL
BL/G - BR/B
V/W - Y
Y - B/G

ORIGINAL PIN DIAGRAM OF USDM X-05 (F) TO X-05 (EM) CONNECTOR


X-05 FRONT 10 PIN CONNECTOR

| G |BL/G|XXXX XXXX| V/W | Y |
|G/W|W/G| B/W | G\B | B/O | BR/W |


X-05 USDM (EM)10 PIN CONNECTOR

|B/L|BR/B| XXXXX | Y | B/G |
|BR | R |B/W|W/L | B/Y |BR\W|

just let me know if you have any other question. sorry for the late respond.

Sorry
 

I apologize for resurrecting a dead thread. So im lame terms, should I be cutting off the JDM x-05 connector from the main engine harness and splicing in the USDM x-05 connector, splicing COLOR to COLOR, EXCEPT for the one brown/yellow wire? Or is there a certain wire from the JDM harness that needs to go to the USDM x-14 white connector with a blue wire?

Attachment 721477



Also, what exactly is this white connector here, and where does it need to be connected?

http://img.photobucket.com/albums/v2...s/IMAG0151.jpg

I also notice that the x-05 connector does not need this extension piece to fit into that other part. Is it necessary to be hooked up? it looks like in the picture above they have it hooked up directly. I apologize again for being so electrical illiterate. Someone to coach me through this part would be greatly appreciated. I am thinking this is the reason I have no power to my injectors.

If it fits in there then why would you want to swap it? I think they made the change to the bigger connector on cars 96 and up. None of the wires from the blue connector go into a different connectors.

I would just make sure that the color of the wires match on each side, also I would avoid splicing wires there especially on a connector that can be de-pinned so easily...

The white connector plugs into another female down there near the firewall you just have to look for it.

If that's the case then what were those previous guys talking about with connector x-14? Also does anybody know what that white connector is? I do realize it has to connect somewhere...

Please anybody, help!

So according to everything above, I have everything wired up correctly... I think. I tested power to my injectors, and I now have 12 volts going to them. I also have fuel pressure to the rail. My injectors will still not fire. I even pulled spark plugs with the egi fuse still in and cranked. No fuel spraying. Does anybody have any idea why this could be happening?

did you find the x-14 connector? if not its its between the blower and the firewall. also did you follow the step that i did? did you check your voltage from the x-05 front all the way to the injector clips? lmk

I found the x-14 connector and connected it. I will test for continuity from the x-05 front to the injector clips next. When you say to test that, you are talking about the brown/orange wire all the way to the injector wires themselves, correct? Thank you for responding. I really appreciate it.

Ok, I tested power from x05 front to the injector clips and everything checks out ok. Can anyone think of a reason why my injectors are not pulsing? Is there an injector silonoid that could be malfunctioning?

i had the same problem while doing this mod. all i can remember was i had the injectors B/Y(EM) connected to pin G/B (FRNT). I was getting good 12v, fuel press, but the engine just cranks all day. so i went back and re-verified each pin again and i accindently swapped pin B/L with G/B on the x-05 connector. so just makes sure the B/L and B/O mates together. try it again and lmk.

X-05 FRONT 10 PIN CONNECTOR

| G |BL/G|XXXX XXXX| V/W | Y |
|G/W|W/G| B/W | G\B | B/O | BR/W |


X-05 USDM (EM)10 PIN CONNECTOR

|B/L|BR/B| XXXXX | Y | B/G |
|BR | R |B/W|W/L | B/Y |BR\W|

I know it sounds stupid to ask, but could you actually spell out the full title of the colors that are important to match up? Also can you explain which orientation is which? Like are those views looking at or behind the connector? Sorry, I just need to get this right, and thank you.

the view is looking infront of the connector on both.
for example your reading x-05 ( EM) BLK/BLU from your top left and you connect it to x-05 ( Front) Green your top right

X-05 FRONT 10 PIN CONNECTOR

| GREEN | BLKBLU/GRN |XXXXXXXXXXX| VIO/WHT | YELLOW |
| GRN/WHT |WHT/GRN|BLK/WHT|GRN/BLK| BLK/ORG | BRN/WHT |

X-05 USDM (EM)10 PIN CONNECTOR

| BLK/BLU | BRWN/BLK | XXXXXX XX| YELLOW | BLK/GRN |
| BRWN| RED| BLK/WHT | WHT/BLU| BLK/YEL | BRWN/WHT |

i hope this explains it. lmk

When you wire the br/y wire to the x-14 connector, do you de-pin the old wire or just splice it in? My harness already has the blue wire on both sides of the x-14 connector.

can anyone answer this? I'm wondering the same thing. There are two blue wires already on the x-14 plug. Thanks

I just did this conversion on a JDM harness. I did have the same question as you, but ended up just skipping brown/y wire since I am not using fuel temp. No lights, no issues.

really? I'm actually showing a check engine light because of this. Thanks for your reply. Right now I'm trying to find the JDM x14 connector and trying to see what the blue wire that I'm supposed to pin to and see where that goes on the JDM harness. If that makes sense.

ah, I'm on PFC

thanks brotha hopefully someone can help. !

the mysterious white connector
 

Did you ever find out what the white connector was for, and whether it needed to be connected, and if so, connected to what? My mechanic here down in Bellevue is trying to figure out the same question.

Someone posted that it goes to a connector up on the firewall, but what function does it support in the electrical system? Little white orphan. Lots of wires coming out of it.

If you learn anything on this, I'd be interested to. As far as I can tell, there isn't really much documented on the JDM harness + fan recall.