saxman Posted April 8, 2013 Share Posted April 8, 2013 Ok, quick run down. 05 Outback XT. DP, BNR 16G, tune in progress. I have been getting a misfire on cylinder 3. Mostly a flashing CEL under hard acceleration with a solid CEL once or twice. I swapped ignition coils on passenger side, did several pulls, and not one flashing CEL. I seem to remember reading someone else experiencing this on here but couldn't find the thread again. Car had just over 100,000 miles. Is this likely a bad coil pack even though the misfire went away after swapping? Link to comment Share on other sites More sharing options...
JermTheElf Posted April 8, 2013 Share Posted April 8, 2013 Could have been a loose connection on one of the clips Link to comment Share on other sites More sharing options...
DOHCstunr Posted April 8, 2013 Share Posted April 8, 2013 Check the coils for resistance to see if they are within service specs. That is the only way to really know for sure if the coils are good. Link to comment Share on other sites More sharing options...
saxman Posted April 8, 2013 Author Share Posted April 8, 2013 Could have been a loose connection on one of the clips That would be very unusual because I had the coils unplugged once to replace the plugs when the new turbo went in and then again to regap the plugs. It'd be odd the connector was loose both times. Link to comment Share on other sites More sharing options...
saxman Posted April 8, 2013 Author Share Posted April 8, 2013 Check the coils for resistance to see if they are within service specs. That is the only way to really know for sure if the coils are good. I'll check. Do you know what it's supposed to be off hand? Link to comment Share on other sites More sharing options...
notthesnail Posted April 8, 2013 Share Posted April 8, 2013 Cylinder 3 is the closest one to the turbo. All that heat means a shorter life for that coil pack. Probably moving it away from that heat has stopped the misfire...for now. Don't be surprised if it comes back on the new cylinder (same side front is #1). When mine did the same thing the laminated core of the coil pack was delaminating from the rust. If yours looks like that, order a new one to have on hand. Or swap it right away. Link to comment Share on other sites More sharing options...
saxman Posted April 8, 2013 Author Share Posted April 8, 2013 What's typical life expectancy on our coil packs? I know it can vary depending on various conditions but just wondering an approximate expectancy. Link to comment Share on other sites More sharing options...
JmP6889928 Posted April 8, 2013 Share Posted April 8, 2013 I've already had 2 fail at 72K, so BUY a new coil. It's not long for this earth. You may have had a ground issue, but once it has failed, even if you have a better ground, it will fail again. Buy the new one and put it in your spare tire well for when it does. You won't regret it. Link to comment Share on other sites More sharing options...
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