right i am sure this has been asked many times but i would like a definitive answer if anyone has one. shortly after purchasing my c4gp 2008 3 weeks ago the service light came on, along with eml and depollution filter fault and handbrake failure and asr/esp fault and started misfiring, this would clear after restarting and eventually eml would go out and would then occur randomly again and again. i plugged scanner in and came up with p1339, googled and is a misfire on cylinder 3, changed coil pack and all plugs and has been fine for 2 weeks. until today, done it twice in one short drive, normally when stopped, scanned for codes, p1339 again, well its not coil pack or plug, code clears straight away and its fine again. must be electrical, any ideas guys?
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