ej20G coil conversion

[rob]

Originally Posted by dwrecckk

There was nothing wrong with it, just a bit confusing.

Pin1 : Pin2: Pin3
+12v : GND : Trigger
Red : Blk : Green <--- wire colors I used in my picture
RY : BY : GY <--- '02 WRX harness colors

It was just reversed compared to the picture right below it

Pin1: Pin2: Pin3
Trig :GND:+12V
Green Black Red

matches the pic below.

That's why in the line above what you quoted it says;

Using the above picture as a reference, the pinning is as follows from left to right:

The picture above the description has it oriented correctly

Plus it's how the wiring diagram from the WRX manual has the pins numbered.

-Rob

EDIT: I went ahead and flipped the second picture to avoid future confusion.

* Registered users of the site do not see these ads.

[Not All There]

Hey guys, a friend on here sent me some coils for spares from japan, which look an aweful lot like the us wrx coils im about to convert to. I was wondering if anyone knew what exactly these are. Heres the pics, and the part numbers on them are the following...

22433AA390
Diamond
FK0053 12V
6725





im hoping i can just use these, they look identical and gave the rubber insulator boots that dont crack.

[Not All There]

I really want to make sure the pins and such are the same, part numbers are diffferent than the us coilpacks, but looks and size is identicle as far as i can see

[hail2theTheif]

what did you guys do with the untouched ground? did you just plug the connector back in and leave it there?

anyone who has successfully done this please read my problem thread. i could really help in getting mine fixed.

thanks.

[dwrecckk]

Originally Posted by rob

That's why in the line above what you quoted it says;

The picture above the description has it oriented correctly

Plus it's how the wiring diagram from the WRX manual has the pins numbered.

-Rob

EDIT: I went ahead and flipped the second picture to avoid future confusion.

Must have missed that, haha. Whoops. Sorry, wasn't trying to nitpick. Definately owe a big thanks for this sticky. Very useful mod.

[keirnna]

Originally Posted by Not All There

Hey guys, a friend on here sent me some coils for spares from japan, which look an aweful lot like the us wrx coils im about to convert to. I was wondering if anyone knew what exactly these are. Heres the pics, and the part numbers on them are the following...

22433AA390
Diamond
FK0053 12V
6725





im hoping i can just use these, they look identical and gave the rubber insulator boots that dont crack.

I mentioned in the email, as I am sure you know now, but I will post in case someone else wants to know in the future. Those are EJ20H coil packs.

[Not All There]

your not going to believ this but i found my original coil... i kept it aside for you in case you need one. I have not done the swap yet, was hoping to do some more research in order to confirm these are wired the same way. They are wired and ready to install, i just want to confirm they work the same as the wrx coilpacks before i go threw the trouble of installing them.

So NASIOC, will EJ20H coilpacks, as seen above, work and wire up the same way as wrx coilpacks? they look identical to me...

[rob]

Originally Posted by Not All There

your not going to believ this but i found my original coil... i kept it aside for you in case you need one. I have not done the swap yet, was hoping to do some more research in order to confirm these are wired the same way. They are wired and ready to install, i just want to confirm they work the same as the wrx coilpacks before i go threw the trouble of installing them.

So NASIOC, will EJ20H coilpacks, as seen above, work and wire up the same way as wrx coilpacks? they look identical to me...

I don't think anyone here is going to be able to answer that definitively. My guess is that they are going to work the same. I would suggest that you convert just one cylinder and verify that it runs as expected. If it doesn't, it would be pretty easy to revert back.

-Rob

[Not All There]

thanks rob. Theres no wire diagrams of the EJ20H that would show a similar set up as the newer wrx's?

[keirnna]

Also I if you like. I can clip the EJ20H wiring harness to send the ends to you for a cleaner wiring job.

[Not All There]

that would have been mint but i already sealed and wired the individual ones in there, came out pretty nice. Thanks for the offer.

[keirnna]

Cool, sorry I didn't mention that earlier .

[WRX_RA]

HELP!
Just just this swap and I have no idea what I could have done wrong...
Can someone think of something really stupid that I might have missed?
I followed the instructions over twice.
My coilpacks I bought were a grey colour instead of being all black.
Off of a 2005.
Is there any wiring difference there?
I have a version 1 WRX (GC8-A EJ20G)

_Matt

[Not All There]

you got rid of the ignitor correctly as well?

[WRX_RA]

yep and I even tore off all the shrink wrap I had put on to take a look again.

[kike_ej20]

Is anybody running high boost on this kind of coilpacks to show me that they really work?
The reason I'm asking is because I have a lot of ej20g spare coilpacks that I use every time I break one under high boost....and it is really getting old.

[hail2theTheif]

i'm running 16.5 pounds on the conversion and the difference from the old style coils is massive. no stuttering or misfires under WOT.

[kike_ej20]

Originally Posted by hail2theTheif

i'm running 16.5 pounds on the conversion and the difference from the old style coils is massive. no stuttering or misfires under WOT.

Well,I'm running 22 that is probably why
For how long have you been running 16.5?and what do you mean by massive? Where the old style in good shape too?

[Not All There]

Another one now happily converted!

[johnny p]

Amen!

[Kaymin]

i'm in the middle of this, should my car be able to run on only three of them?

my soldering iron died on me on the last one and I just wanted to try it on three.

it cranks, starts and dies. does that sound normal?

just wanted to know before i get disappointed when i get all 4 done.

(the forth isn't plugged in at all)

[Not All There]

it should run rough, mine idled with 3 before.

[Kaymin]

Originally Posted by Not All There

it should run rough, mine idled with 3 before.

not sure what was wrong before but i finished it all up and it idles better then before now. but now i think one of my connections somewhere came undone. lacking power and i'm getting back fire. so i'm thinking i'm running on 3 or less cylinders

[Not All There]

i had one come loose because of a crappy crimp, check you connections.

[Kaymin]

Originally Posted by Not All There

i had one come loose because of a crappy crimp, check you connections.

i got rid of all my crimps. soldered everything.

got it running but on three cylinders. swapped that coil pack with another one to check the wiring. pretty sure that coil pack is dead.