Jump to content

Welcome to Ultimate Subaru Message Board, my lurker friend!

Welcome to Ultimate Subaru Message Board, an unparalleled Subaru community full of the greatest Subaru gurus and modders on the planet! We offer technical information and discussion about all things Subaru, the best and most popular all wheel drive vehicles ever created.

We offer all this information for free to everyone, even lurkers like you! All we ask in return is that you sign up and give back some of what you get out - without our awesome registered users none of this would be possible! Plus, you get way more great stuff as a member! Lurk to lose, participate to WIN*!
  • Say hello and join the conversation
  • Subscribe to topics and forums to get automatic updates
  • Get your own profile and make new friends
  • Classifieds with all sorts of Subaru goodies
  • Photo hosting in our gallery
  • Meet other cool people with cool cars
Seriously, what are you waiting for? Make your life more fulfilling and join today! You and your Subaru won't regret it, we guarantee** it.

* The joy of participation and being generally awesome constitutes winning
** Not an actual guarantee, but seriously, you probably won't regret it!

Serving the Subaru Community since May 18th, 1998!

Guest Message by DevFuse

- - - - -

Troubleshooting Cylinder 3 Misfire

  • Please log in to reply
6 replies to this topic

#1 pi_1980


    New User

  • Members
  • Pip
  • 3 posts
  • Anchorage

Posted 12 March 2013 - 06:57 PM

I have a 96' Legacy Brighton with a 2.2. Reciently we have been having the cylinder 3 misfire code thrown on the CEL. I have seen a lot of people say one of the steps for troubleshooting is to change the coil pack location that feeds the trouble cylinder. Do I just swap the plug wires front to back to test the Coil pack like that? No one realy explains how to do this switch for this particular test


Thanks for taking time to look at my question.

#2 ocei77


    Eat, Live, Breath Subaru

  • Members
  • 760 posts
  • Monticello,NY

Posted 13 March 2013 - 09:59 AM

Swap plug with any that will reach. Clear code. If code returns to the other cylinder then it is the wire. If not it could be either a coil/injector.

Reistance values for plug wires is 5.12 - 12.34 Kohms. See attached for coil check.



Attached Files

Edited by ocei77, 13 March 2013 - 09:59 AM.

#3 Gloyale


    It's a sickness

  • Members
  • 9,822 posts
  • Corvallis, OR PNW

Posted 13 March 2013 - 10:45 AM

Swapping coil packs around is a wrx or svx thing. Your legacy has a single coil pack. Swapping wires around wont work.

Consistent misfire is often the first sign of a burnt valve. Do a comp. test and a leakdown test on that cylinder.

#4 gbhrps


    User Awaiting Email Confirmation

  • Members
  • 1,000 posts
  • canada

Posted 13 March 2013 - 01:46 PM

Years ago I had a 97 OBW that had an intermittent misfire that wouldn't show up on the scanner as a code. After plug changes, and wire changes, a swap with another coil solved the issue. It might work for you, ...... or not. Good Luck!

#5 Fairtax4me



  • Members
  • 12,191 posts
  • Charlottesburg, VA

Posted 13 March 2013 - 07:11 PM

When did it last get new spark plugs and wires? If it has been more than 40k miles its time for those.

#6 talldude


    USMB Regular

  • Members
  • 163 posts
  • Placerville

Posted 22 March 2013 - 11:09 PM

Our 97 impreza 2.2 would wear out spark plugs in 30k miles; once I let it go a little longer and got a misfire code at high rpm and manifold pressure.  Check spark plug gaps first! 

#7 lmdew



  • Members
  • 3,476 posts
  • Colorado Springs

Posted 23 March 2013 - 06:24 PM

Plugs, NGK

Plug Wires NGK or Subaru

Swap the coil with a known good one

Check the Injector, you can listen to it activate or pull the plug and see if the idle drops.

If you have a spare injector connect it to the plug and make sure it's working.

0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users