Its the injector leaking overnight and sturating the spark plug. When you first start the SP is wet with fuel causing your misfire. They replaced my fuel pump first with program update. Then the next day after it was still misfiring they replaced all 6 injectors plugs and low pressure fuel sensor. HTH
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E90 335i
Sport Package - Logic 7 Sound w/ipod - Bluetooth - Comfort Access - PDC - 19" M3 Reps 275/30 235/35 - Blacklines - 10mil spacers rear, 5mil spacers front - BMW Alarm
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