So i have a late model ej22 thats going into my 73 super.
i started the wiring yesterday, but i can not find a wiring diagram for the obd2 computer. anyone know of a good one? hopefully with color codes?
Wiring Help 98 ej22
-
dlamyle
- Posts: 153
- Joined: Tue Jul 09, 2013 11:27 am
Re: Wiring Help 98 ej22
If you can't find an FSM for your donor you can try something like this. It's for 99-01 Imprezas but should get you in the ballpark. Wire color codes on page 3 and engine wiring for the ej22 are pages 32-35. Might want to check the shape and layout of your ECM plugs with the ones on the diagram to see if they are a match. http://ken-gilbert.com/wrx/mans/99-01%2 ... iagram.pdf
1968 Karmann Ghia, JDM EJ205, Subarugears, OBX LSD, Blouch 16g XTR, Killer B Headers, DW 750cc, Meth Inj, Cobb AP w/Mach V 22psi Dyno tune (332whp)
Videos
Build Thread
Videos
Build Thread
-
PressY4Pie
- Posts: 50
- Joined: Wed Dec 17, 2014 7:36 pm
Re: Wiring Help 98 ej22
Thats awesome actually. i found one that helped here: https://www.xcceleration.com/pinouts/98 ... CU-TCU.pdf
i have it all settled now, but i have another thing stumping me.
i have everything in a nice shape except my power and ground wires. i know i need some in line fuses and such so i stopped for now.
i have yellow ignition and the red starter wire and i know where those go, but what i dont know is the red wire on pin 39 called back-up power. does this go to the 2 red wires on the main relay? im also amusing i can just connect all the grounds together? could anyone help me out?
i have it all settled now, but i have another thing stumping me.
i have everything in a nice shape except my power and ground wires. i know i need some in line fuses and such so i stopped for now.
i have yellow ignition and the red starter wire and i know where those go, but what i dont know is the red wire on pin 39 called back-up power. does this go to the 2 red wires on the main relay? im also amusing i can just connect all the grounds together? could anyone help me out?
-
PressY4Pie
- Posts: 50
- Joined: Wed Dec 17, 2014 7:36 pm
Re: Wiring Help 98 ej22
ok i think ive made some progress, but if anyone has built a wiring harness for a late model could you chime in?
I have three big yellow wires on the big grey plug, the one lined in blue and the one lined in red both match colors on the main relay and ecu. but i dont know where the one with the double yellow stripes goes too.
then at the relay end, i have all the red wires going to be going to 30 amp fuse to the hot side of the battery. does the red wire from the ecu at pin 39 (back up power supply) go here too?
then i have the ignition wires from the fuel pump relay and ecu that will go thru a 15 amp fuse to ignition on. i have pin 1-2 going to the yellow/blue on the brown relay. the yellow-red matches the one on the engine plug.
so i guess my main question is where does the extra yellow/red stripe go to? pardon the messy wiring and stuff. im re doing it when i get it all going.
I have three big yellow wires on the big grey plug, the one lined in blue and the one lined in red both match colors on the main relay and ecu. but i dont know where the one with the double yellow stripes goes too.
then at the relay end, i have all the red wires going to be going to 30 amp fuse to the hot side of the battery. does the red wire from the ecu at pin 39 (back up power supply) go here too?
then i have the ignition wires from the fuel pump relay and ecu that will go thru a 15 amp fuse to ignition on. i have pin 1-2 going to the yellow/blue on the brown relay. the yellow-red matches the one on the engine plug.
so i guess my main question is where does the extra yellow/red stripe go to? pardon the messy wiring and stuff. im re doing it when i get it all going.
-
PressY4Pie
- Posts: 50
- Joined: Wed Dec 17, 2014 7:36 pm
Re: Wiring Help 98 ej22
aaannnnnnd moments later i seem to have found a wire scrap, leading me to believe it goes to ignition. if im still wrong, let me know though.