Welcome to the North American Subaru Impreza Owners Club Sunday November 19, 2017
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
Go Back   NASIOC > NASIOC Technical > Subaru Conversions

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.
* Registered users of the site do not see these ads. 
Thread Tools Display Modes
Old 06-13-2010, 04:59 PM   #1
Scooby Newbie
Member#: 143024
Join Date: Mar 2007
Default Coil pack wiring woes...

Hey guys-

I have a coil pack that has 3 wires pig-tailing off of it (red, blue, yellow). It is a Diamond off of a JDM EJ25 DOHC. I originally bought an USDM harness for the motor and all of the connections fit except the coil pack, so I made my own connection for the coil pack (3 individual blade connections). I then had Outfront Motorsports re-do my harness with a Stinger ECU system. So, here is the problem;

- I am not exactly sure what the right combination is for the coil to be working properly. There are only 6 combinations and I have tried them all.

-when I hook up everything to their corresponding wires (i.e. red-to-red, blue-to-blue, yellow-to-yellow) the motor fires up but there is no spark from the back set of spark-plugs.

-there are two combinations that work with all cylinders receiving spark.

I am thoroughly confused and want to get some more info before I call Outfront on Monday. I just would like to know how the coil pack works in relation to the wires (what wire receives what signal). thanks a lot in advance.

1974 Porsche 914 Suby conversion


Even when all cylinders are receiving spark the back two cylinders are still not firing. I switched the fuel injector plugs (back wires to front) and the engine still works, albeit the back two cylinders so I know that the signal is getting to the fuel injectors. Could it be that the timing is so far off that the cylinder is receiving spark and fuel, just not at the right time? Thanks.
* Registered users of the site do not see these ads.
malaga_red75 is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Forester Ign Coil pack wiring diagram??!? drivemusicnow Electrical & Lighting 0 01-06-2010 10:33 PM
Coil Pack Wiring Harness Install? Odin Factory 2.0L Turbo Powertrain (EJ Series Factory 2.0L Turbo) 11 10-03-2009 06:02 PM
99 2.5 RS coil pack wiring colors help 69subaru360 Normally Aspirated Powertrain 0 09-09-2009 11:55 PM
can someone check my coil pack wiring for me? rabbitnutz Subaru Conversions 7 01-24-2006 11:26 PM
coil pack wiring rjrutzky Factory 2.0L Turbo Powertrain (EJ Series Factory 2.0L Turbo) 3 09-08-2005 11:39 AM

All times are GMT -4. The time now is 07:06 AM.

Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2017 Axivo Inc.
Copyright ©1999 - 2017, North American Subaru Impreza Owners Club, Inc.