TenzoGT Posted November 30, 2012 Share Posted November 30, 2012 not my car, but a friend replaced his spark plugs and now the car runs fine when cold or at hyw speeds, but once it gets warm it runs like crap.. sometimes stalling at idle, coils are good everything is connected properly.???? not sure what it might be, anyone? Link to comment Share on other sites More sharing options...
robitrice Posted November 30, 2012 Share Posted November 30, 2012 were the gapped correctly when they were put in? Link to comment Share on other sites More sharing options...
Strizzy Posted November 30, 2012 Share Posted November 30, 2012 What brand of plugs? What gap? My bad luck build Link to comment Share on other sites More sharing options...
TheBlackPearl Posted December 1, 2012 Share Posted December 1, 2012 I've read a couple posts where the problem was the coil pack plug, they get broken, and/or loose during removal. My .02¢ Self proclaimed PNW Craiglist find of the day Champion, April 2014. Link to comment Share on other sites More sharing options...
321 Posted December 1, 2012 Share Posted December 1, 2012 You can try reinstalling old plugs and see if the problem goes away. If it does then you know the problem is with the new plugs. If it dosn't maybe a coil is starting to brake down when it gets hot. Link to comment Share on other sites More sharing options...
TenzoGT Posted December 1, 2012 Author Share Posted December 1, 2012 Plugs were purchased from dealer, i dont think the gap was checked. But did put original plugs back in, and it ran bad too. Link to comment Share on other sites More sharing options...
AZP Installs Posted December 1, 2012 Share Posted December 1, 2012 Could be a bad coil pack or bad coil pack connection. We have seen where the coil pack connectors tend to snap when they are removed/replaced to do the plugs. -Mike Paisan http://www.pbase.com/paisan/image/91072632.jpg http://www.pbase.com/paisan/image/145749898/original.jpg http://www.pbase.com/paisan/image/133406601.jpg http://www.whiteline.com.au/images/logos/perf1.jpg 11+ Years Maintaining, Modifying and Educating TriState Subaru Enthusiasts. Call directly as We carry almost every manufacturer now, so before you buy parts call us. Like us on Facebook! | E-mail: sales@azpinstalls.com | 725 Fairfield Ave | Kenilworth, NJ 07033 | 908.248.AZP1 (2971) | T-1 Certified Amsoil Direct Jobber |AIM: AZP Installs "Race Tested, Enthusiast Approved!" Link to comment Share on other sites More sharing options...
TenzoGT Posted December 1, 2012 Author Share Posted December 1, 2012 there is one of the connectors that had already been zip tied to the coil. but the connection is good. still does not explain running like crap once its warm. or only at idle. Link to comment Share on other sites More sharing options...
AZP Installs Posted December 1, 2012 Share Posted December 1, 2012 there is one of the connectors that had already been zip tied to the coil. but the connection is good. still does not explain running like crap once its warm. or only at idle. I'll bet you that is your issue. But hey what do I know... -Mike Paisan http://www.pbase.com/paisan/image/91072632.jpg http://www.pbase.com/paisan/image/145749898/original.jpg http://www.pbase.com/paisan/image/133406601.jpg http://www.whiteline.com.au/images/logos/perf1.jpg 11+ Years Maintaining, Modifying and Educating TriState Subaru Enthusiasts. Call directly as We carry almost every manufacturer now, so before you buy parts call us. Like us on Facebook! | E-mail: sales@azpinstalls.com | 725 Fairfield Ave | Kenilworth, NJ 07033 | 908.248.AZP1 (2971) | T-1 Certified Amsoil Direct Jobber |AIM: AZP Installs "Race Tested, Enthusiast Approved!" Link to comment Share on other sites More sharing options...
KNS Brakes Posted December 1, 2012 Share Posted December 1, 2012 I'll bet you that is your issue. But hey what do I know... -Mike Paisan http://www.pbase.com/paisan/image/91072632.jpg http://www.pbase.com/paisan/image/145749898/original.jpg http://www.pbase.com/paisan/image/133406601.jpg http://www.whiteline.com.au/images/logos/perf1.jpg 11+ Years Maintaining, Modifying and Educating TriState Subaru Enthusiasts. Call directly as We carry almost every manufacturer now, so before you buy parts call us. Like us on Facebook! | E-mail: sales@azpinstalls.com | 725 Fairfield Ave | Kenilworth, NJ 07033 | 908.248.AZP1 (2971) | T-1 Certified Amsoil Direct Jobber |AIM: AZP Installs "Race Tested, Enthusiast Approved!" Fancy Mike with me at PRI!! Link to comment Share on other sites More sharing options...
321 Posted December 2, 2012 Share Posted December 2, 2012 Have you checked for any codes. You can start pulling injector connectors to pin point which cylinder is giving you issues, Link to comment Share on other sites More sharing options...
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