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Old 12-13-2015, 08:21 PM   #351
makipsee
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is your fuel pump coming on?
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Old 12-13-2015, 08:35 PM   #352
HamFist
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Quote:
Originally Posted by makipsee View Post
is your fuel pump coming on?
Yes45
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Old 12-13-2015, 09:02 PM   #353
makipsee
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Originally Posted by HamFist View Post
Yes45
are you able to pull the fuel pump relay and double check power? im wondering if the relay would still operate with only 5 volts
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Old 03-20-2016, 07:10 AM   #354
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hi can someone help me here ? i dont know how i would go about connecting my igniter because i only have 5 points/cables on one side only ? as to Robs igniter diagram he has 5 cables going into 4 ? BUT i dont even have the other 4 ? there is a picture of my igniter please check it out .....

also i know how to hook up the new age coil on plug AKA COP/pigtail plug as Rob explained....but the 3 cables coming into a Pigtail plug, i dont know where to hook them up ? its like i need to connect 4 COP into what ?


http://s28.postimg.org/nvcxryq9p/my_igniter.jpg
http://s13.postimg.org/4ikckral3/my_ignitor2.jpg

http://s23.postimg.org/timaq5q3v/igniter.jpg

car spec wrx/gc8 1998 EJ20
jesc/factory stock ecu
single coil pack on top/center of the manifold

Last edited by whiterabbitrexy; 03-20-2016 at 07:43 AM.
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Old 03-20-2016, 07:27 AM   #355
makipsee
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double post

Last edited by makipsee; 03-20-2016 at 07:29 AM. Reason: double
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Old 03-20-2016, 07:28 AM   #356
makipsee
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Quote:
Originally Posted by whiterabbitrexy View Post
hi can someone help me here ? i dont know how i would go about connecting my igniter because i only have 5 points/cables on one side only ? as to Robs igniter diagram he has 5 cables going into 4 ? BUT i dont even have the other 4 ? there is a picture of my igniter please check it out .....

also i know how to hook up the new age coil on plug AKA cop as Rob explained....but the 3 cables coming into a plastic plug adapter on each COP, i dont know where to hook them up ? its like i need to connect 4 COP to what ?


http://s28.postimg.org/nvcxryq9p/my_igniter.jpg
http://s13.postimg.org/4ikckral3/my_ignitor2.jpg

http://s23.postimg.org/timaq5q3v/igniter.jpg

car spec wrx/gc8 1998 EJ20
jesc/factory stock ecu
single coil pack on top/center of the manifold
this is because we are wasted spark. I dont remember 100% bc i did mine a while ago. but all you do is connect pin1 and pin6 together and pin2 and pin5 together and that will bypass the ignitor.
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Old 03-20-2016, 07:47 AM   #357
whiterabbitrexy
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Quote:
Originally Posted by makipsee View Post
this is because we are wasted spark. I dont remember 100% bc i did mine a while ago. but all you do is connect pin1 and pin6 together and pin2 and pin5 together and that will bypass the ignitor.
makipsee thanks for a super quick reply much love bro....i understand what your saying but when u say pin 6 ? im lost because i only have 5 pins in total ?
so witch one would pin 6 be on my igniter ?
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Old 03-20-2016, 08:15 AM   #358
makipsee
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Quote:
Originally Posted by whiterabbitrexy View Post
makipsee thanks for a super quick reply much love bro....i understand what your saying but when u say pin 6 ? im lost because i only have 5 pins in total ?
so witch one would pin 6 be on my igniter ?
No problem i know what its like waiting for help/answeres so if i know something i try to answer as soon as i can.

Although you only have 5 wires the connector can accept 6 wires so pin1 and pin6 would be the outer most wires.
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Old 03-21-2016, 06:36 AM   #359
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Quote:
Originally Posted by makipsee View Post
No problem i know what its like waiting for help/answeres so if i know something i try to answer as soon as i can.

Although you only have 5 wires the connector can accept 6 wires so pin1 and pin6 would be the outer most wires.

i think ill just give up while im a head ..... was reading on Dwell timing and if its off a bit i can have a big mess.....but was reading some where else that all OEM Subarus should have the same Dwell ? and im completely lost now because i thought rob was doing a single coil pack to multi coil on plug conversion but he already had that old phase 1 multi coil on plug so i understand where his pigtail plug was connecting too but now if i was to do that where do i connect the pigtail plug ?

thanks for the reply makipsee but again im still not on the same page with u ... connect pin 1 and 6 and that would take 2 cylinders of the pigtail from the cop? ? and connect pin 2 and 5 and that will take/control the other 2 cylinders ?
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Old 03-21-2016, 07:29 AM   #360
makipsee
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Quote:
Originally Posted by whiterabbitrexy View Post
i think ill just give up while im a head ..... was reading on Dwell timing and if its off a bit i can have a big mess.....but was reading some where else that all OEM Subarus should have the same Dwell ? and im completely lost now because i thought rob was doing a single coil pack to multi coil on plug conversion but he already had that old phase 1 multi coil on plug so i understand where his pigtail plug was connecting too but now if i was to do that where do i connect the pigtail plug ?

thanks for the reply makipsee but again im still not on the same page with u ... connect pin 1 and 6 and that would take 2 cylinders of the pigtail from the cop? ? and connect pin 2 and 5 and that will take/control the other 2 cylinders ?
i have had this setup on my car for about 2 years with no issues. Yes pin1 would be the trigger from the ECU and you would connect that to pin6 which goes to the coil you would have to make a tee so that it goes to cylinders 1 and 2. Then connect pin2 to pin5 and again tee that and that would go to cylinders 3 and 4.

EDIT:: i was wrong i have had this for 4 years lol https://www.youtube.com/watch?v=tHrSy6T8c_4

Last edited by makipsee; 03-21-2016 at 07:31 AM. Reason: edit
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Old 06-08-2016, 08:19 AM   #361
krczk
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Is it possible for someone to post the pictures how to cut the coils to fit in old ej20G ?
I found that tere was discusion about it in 2008 but the links to the pictures dont work now :/
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Old 06-08-2016, 05:58 PM   #362
monkeyposeur
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Try searching on bbslegacycentral.com
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Old 06-08-2016, 08:20 PM   #363
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Quote:
Originally Posted by monkeyposeur View Post
Try searching on bbslegacycentral.com
done before, on forum they link to this post :/
i'm going circles
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Old 05-04-2017, 02:11 PM   #364
Yonnie
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hey rob just about to do your coil conversion before i think about one of your tunes.
do you have a favored coil pack make? looking at Napol Performance packs.
http://napolperformance.com/subaru/0...ester-jdm.html
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Old 05-04-2017, 04:06 PM   #365
ltizzy
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Quote:
Originally Posted by Yonnie View Post
hey rob just about to do your coil conversion before i think about one of your tunes.
do you have a favored coil pack make? looking at Napol Performance packs.
http://napolperformance.com/subaru/0...ester-jdm.html
I just bought mine off of ebay. They run about $50 a set of 4 used out of an STI. I thought maybe I'd get a bad one, so I bought two sets. I still have 4 coils taking up space in my storage for the past 4 years or so...

And don't forget these:
http://www.ebay.com/sch/i.html?_from...ug+set+impreza

Last edited by ltizzy; 05-04-2017 at 04:10 PM. Reason: More information
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Old 02-27-2018, 09:18 AM   #366
Stooky127
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Hey guys sorry for bribging this tread back to life but i do have a question about this..so I did this conversion to the core as written and followed all the steps..the car starts up fine but after it warms up and I blip the throttle it starts to misfire and idle very rough and low(like dropping below 500) almost like it runs on 3 cylinders..also I think it's running rich cause of the black smoke and smell of fuel. **note: I also did upgrade my fuelpump to a wallbro 255 and a earomotive adjustable FPR while doing this upgrade...Anyone also run into this issue?
Thanx
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Old 02-27-2018, 12:14 PM   #367
makipsee
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Quote:
Originally Posted by Stooky127 View Post
Hey guys sorry for bribging this tread back to life but i do have a question about this..so I did this conversion to the core as written and followed all the steps..the car starts up fine but after it warms up and I blip the throttle it starts to misfire and idle very rough and low(like dropping below 500) almost like it runs on 3 cylinders..also I think it's running rich cause of the black smoke and smell of fuel. **note: I also did upgrade my fuelpump to a wallbro 255 and a earomotive adjustable FPR while doing this upgrade...Anyone also run into this issue?
Thanx
Check for any vacuum leaks. Also is your FPR set right?
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Old 02-27-2018, 02:23 PM   #368
Stooky127
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Quote:
Originally Posted by makipsee View Post
Check for any vacuum leaks. Also is your FPR set right?
As per manual that I read somewhere with vacuum off it's 38-40ish and vacuum on 32-34ish..even if i raise the pressure same problem..yes checked for vacuum non whatsoever..i also pulled all my plugs and all of them are fouled black..reason I tried this upgrade is cause my old coilpacks where shot but the car was driveable
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Old 02-27-2018, 05:12 PM   #369
makipsee
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Quote:
Originally Posted by Stooky127 View Post
As per manual that I read somewhere with vacuum off it's 38-40ish and vacuum on 32-34ish..even if i raise the pressure same problem..yes checked for vacuum non whatsoever..i also pulled all my plugs and all of them are fouled black..reason I tried this upgrade is cause my old coilpacks where shot but the car was driveable
Ok.
All the wiring is correct?
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Old 02-27-2018, 07:46 PM   #370
Stooky127
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Quote:
Originally Posted by makipsee View Post
Ok.
All the wiring is correct?
Yes man..didn't have this problem before..just after the upgrades and conversion this happened..followed the install to the bone..so don't know what and where it went wrong
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Old 02-27-2018, 09:05 PM   #371
makipsee
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Originally Posted by Stooky127 View Post
Yes man..didn't have this problem before..just after the upgrades and conversion this happened..followed the install to the bone..so don't know what and where it went wrong
Dammm... I'm out of ideas... anyone else?
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Old 03-30-2018, 09:39 PM   #372
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Update: got it working guys , the problem were the coils. Altho bought new from ebay they were the cause of the whole problem. So i got myself a set of second hand OEM diamond coils and poof..problem went away. No more misfires. So people wanna do this conversion get some OEM coils to safe you from the problems i had. Allround the conversion is worth it.
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Old 03-03-2019, 12:18 PM   #373
lor.inc
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hello!

pleae help me!
i have '93 legacy (this is now a 2.0 legacy turbo)
this have an old style metal ignitor (http://www.anythingelectronic.co.nz/...roducts_id=348)
i have also the wrx coil on plug with the matching connectors https://i356.photobucket.com/albums/...swr7d.jpg.html
the wires from the both side of ingnitor is connected correctly.
but when i turn the igniter to on.
it is allways 12v and! the ground in all the connecors of coils.
the 12v is in the connectors is ok but the ground not, when i thin correct the ground is controlled trough the ecu.
now all of the coil connecors have 12v and ground.
while cranking the engine then sometimes (i hope in the correct time) it is break.


what is wrong?

maybe i need to put a not logic gate in the system?
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Old 08-18-2021, 03:37 PM   #374
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What was the quality of the seller you bought the coils from?
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Old 09-21-2022, 03:51 AM   #375
tom_sanchez
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Subaru Stars Thinking on MSD or Conversion!

Quote:
Originally Posted by rob View Post
THE WHAT:
This is an example how to convert an old EJ20G to work with '02+ WRX ignition coils.

THE WHY:
The EJ20G coils are notorious for failing with age and causing misfires. I had misfires at anything over 0.8 bar, that was traced to two coils that developed cracks in the housing. Below is what I found (I removed the cracked piece on the one on the right to see what was on the inside).




THE HOW:
The old style ignition incorporates an external igniter, the newer style has the igniter built into the coil housing. The old coils have 2 wires; coil trigger and +12V. The new coils have 3 wires; ground, igniter trigger, and +12v. There is a little bit of harness hacking to make it work, but it's pretty straight forward. Here are the basic steps;

1. Cut connector off of old coils
2. Wire the old pigtails to the new coils; Power to power, trigger to trigger. Wire the ground signal to a ring connector and attach to the mount screw
3. Install new coils and connect up to the Ej20G harness as usual
4. Remove the igniter, and snip the 2 connectors from the harness and merge the harness.

Details of the steps above:

1. This is pretty straight forward, just clip off as much of the pigtail from the old coils as possible.

2. The easiest solution is if you have the matching connectors for the new coils from the '02+ harness. I didn't, so I soldered new wires directly to the coils, then attached the old pigtails to the new wires.



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

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


After soldering the wires, I globbed in a bunch of high temp epoxy to prevent corrosion and to add some strain relief for the pins:



Next comes connecting the old connector to the new coil. You have two colors on the old pigtail, Red and Yellow (one of them might have a stripe, can't remember). Here's the tricky part of this, the wiring diagrams only show the wiring *up to* the coil connectors. The problem is in the diagram, the yellow wire is the +12V, but after the connector, on the coil side, the yellow wire turns into the trigger signal.

** To wire the pigtail to the new coils, connect the Yellow wire to the trigger pin on the new coil and the Red wire to the +12v pin. Put a ring terminal on the center pin wire. Holiday or Christmas decoration products are the major sales of ALDI Ad this week.

Lastly I shrink tubed and put the ring terminal on the bolt (after cleaning the corrosion under the bolt flange)



3. The coil fits in the early WRX heads perfectly, however there are some fitment issues with the Liberty version of the motors. The engine harness has two coil connectors for each side. The grey connector is for the front coil, the black is for the rear.




4. Last part is to bypass the igniter. I chose to simply cut the connectors out of the harness and merge the harness. The igniter is on the backside of the mounting bracket containing the MAP sensor and boost control solenoid.



Cut both connectors out of the harness and remove the igniter. There are 5 input wires into the igniter from the main harness and 4 output wires leaving the igniter to the engine harness. If you are following from the wiring diagrams, this is a very confusing wire up. The signal pins on the ECU are labeled coil 1, 2, 3, 4. The wiring to the coils are also listed as Coil 1, 2, 3, 4. The trick is that they use different conventions. For the ECU, the pins are labeled in *firing order*. For the coils in the diagram, they are listed as the actual cylinder number. The correct wiring is:

ECU side :: Coil side
---------------------
Yellow-Blue stripe (YL) ---> Red-Green stripe (RG)
Green-White stripe (GW) ---> Blue (L)
Red (R) ---> White-Red stripe (WR)
Black-Red stripe (BR) ---> Blue-Green stripe (LG)
Black (B) ---> no connect

Wiring diagram for reference:


THE RESULTS:
So far my high boost misfires are gone and I am back to 1.1 bar. I still need to open the gaps back up to see just how good they are, but so far I am very happy with the conversion.
UPDATE: I peak up to 1.30 bar now and still not a hint of misfire.

-Rob
I have read all replies on this thread (literally) and I am still thinking on going into MSD or do this conversion... I am also looking around to see if someone is making or makes something like a conversion kit or a plug and play kit... have someone heard about it? I have an EJ20K JDM WRX STI Ver4, as Rob shows here looks not complicated and can be done but still thinking about it as the car is not facing any problems on coils but seems that the conversion worth a try, just curious if someone might be selling this in a plug and play version! if someone knows just let me know please! If I decide to make this I will post results... Cheers from Panama!
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