Intermittent Boost Pressure/Bad STFT/Timing? 3/30 - Replaced all cold side piping - Upgraded Intercooler - New boost solenoids
2008 335I misfire when going into boost Struggling with a misfire issue. Replaced all coils and plugs car only misfires on wot or half throttle very light throttle car behaves normally. generally can’t reach over 3000 rpm’s without a misfire on a random cylinder.